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Carpal Tunnel Syndrome

Median nerve entrapment at the wrist: diagnostic criteria, systemic associations, and indications for surgical decompression.

171 citationsUpdated Oct 2026

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Overview

Carpal tunnel syndrome (CTS) is a median nerve compression disorder where ongoing debates persist regarding diagnostic test utility, outcome measurement standardization, and cost-effectiveness calculations [4]. The American Academy of Orthopaedic Surgeons (AAOS) Appropriate Use Criteria provide guidance on diagnostic and treatment options, including scenarios where electrodiagnostic studies are necessary and the appropriateness of surgical versus nonsurgical interventions [8, 20]. While universal acceptance of diagnostic criteria remains elusive without prospective controlled studies verifying improved performance [55], standards for electrodiagnostic studies are defined based on a critical review of the literature [22]. Nonsurgical methods for mild to moderate CTS are effective and underused, with conservative treatment having slight complications compared to surgical risks [46]. More accurate means of selecting patients who will benefit from surgery in the early stages of CTS are needed [10].

Surgical decompression is the treatment of choice for CTS in children and adolescents with no history of trauma, with long-term follow-up recommended [23]. Carpal tunnel decompression surgery is safe and effective, with 97% of patients experiencing complete or partial relief [17]. Endoscopic carpal tunnel release is safe and yields predictable long-term results [9], though it was associated with less postoperative pain than open surgery; the small size of this benefit and similarity in other outcomes make its cost effectiveness uncertain [52]. The outcome of carpal tunnel decompression is good in the majority of cases, with open and endoscopic techniques providing similar results [167]. Clinical symptoms improved in all 55 hands studied, and postoperative electrophysiologic data remained within normal range in patients who agreed to receive electrophysiologic examinations [169].

Successful treatment is commonly defined based on a patient-reported outcome measure (PROM) [45], although universally applied and validated measures for hand surgery outcomes are rarely available [163]. Patients with end-stage CTS do not have worse long-term patient-reported outcomes after carpal tunnel release compared with the general population [6]. Surgery should be considered as the initial form of treatment when patients are diagnosed with CTS confirmed by nerve conduction studies, as this provides symptom resolution with a favorable cost analysis [174]. Patients should not be denied carpal tunnel surgery because of age, but rather should be encouraged to proceed, with the likelihood that they will experience the same rate of improvement as younger individuals [176]. While surgical outcomes in the elderly are less predictable than in younger patients, improvement in symptom and functional scores is sufficient to justify surgery [172]. A rational plan of therapy is available for each category of complications [26], and minimally invasive surgical options using a synovial flap are part of the therapeutic arsenal for recurrent CTS [56].

Anatomy & Pathophysiology

Epidemiology and Risk Factors

Carpal tunnel syndrome is the most common compression neuropathy of the upper extremity [12]. The mean age at diagnosis is 50 years [12]. The condition affects women nearly four times more frequently than men [12]. By age 65, prevalence reaches approximately 5.1% in women and 1.3% in men [12]. Systemic risk factors include obesity, pregnancy, hypothyroidism, diabetes mellitus, and menopause [12]. The American Academy of Orthopaedic Surgeons guidelines identify body mass index and high hand repetition rate as factors with strong evidence for increased risk [12]. Occupational biomechanical factors play a substantial role in causation [236]. In logistic regression analysis, wrist ratio was the only significant predictor for carpal tunnel syndrome risk [225].

Pathogenic Mechanisms

Pathogenesis involves a decrease in carpal tunnel size due to bony abnormalities, acromegaly, or wrist flexion or extension [11]. It also involves an increase in canal contents from fractures, dislocations, posttraumatic arthritis, musculotendinous variants, aberrant muscles, local tumors, persistent medial artery, hypertrophic synovium, or hematoma [11]. Neuropathic contributors include diabetes mellitus, alcoholism, double-crush syndrome, and exposure to industrial solvents [11]. Inflammatory conditions include rheumatoid arthritis, gout, nonspecific tenosynovitis, and infection [11]. Alterations of fluid balance involve pregnancy, menopause, eclampsia, thyroid disorders, renal failure, long-term hemodialysis, Raynaud disease, obesity, lupus erythematosus, scleroderma, amyloidosis, and Paget disease [11]. External forces such as vibration and direct pressure also contribute [11].

Acute carpal tunnel syndrome is a compartment syndrome characterized by a rapid rise and sustained increase in interstitial pressure within the carpal canal [201]. Chronic carpal tunnel syndrome is a compressive neuropathy characterized by an insidious rise in interstitial pressure of a moderate degree [201]. In chronic cases, the pressure increase may initially be intermittent but is likely to be elevated constantly with time and increased symptoms [201].

Biomechanics and Nerve Kinematics

Wrist deviation from neutral leads to more pronounced median nerve deformation than finger flexion for both intensive and nonintensive users [141]. The hydrostatic pressure effect does not appear to influence median nerve kinetics or kinematics for the wrist positions studied [130]. The largest median nerve excursion in the arm and wrist occurs when wrist extension is the terminal movement [144]. A morphological study showed dorsal displacement of the median nerve during wrist flexion in 84.5% of patients [152]. With wrist extension, the cross-sectional area of the carpal tunnel decreases at the pisiform level only [168]. With wrist flexion, the cross-sectional area decreases at both levels studied [168]. Transverse movement of the median nerve is most marked with forearm supination, irrespective of other changes in the kinetic chain [173]. Progressive distraction across the wrist causes a decrease in total carpal canal volume [184]. Flexion of the wrist and/or fingers produces a palmar rearrangement of the flexor tendons, creating potential compression of the median nerve [229].

A significant rise in carpal tunnel pressure is recorded with wrist flexion, wrist extension, making a fist, holding objects, and isolated isometric flexion of a finger against resistance [207]. Application of external forces on the palm of cadaver hands increases carpal tunnel pressure [206]. The magnitude of this pressure change depends on the location of the applied force on the palm [206]. Hydrostatic pressure in the carpal tunnel is affected by both wrist posture and tendon load [209]. The highest carpal tunnel pressures are seen in wrist extension with no load [209]. Patients with idiopathic carpal tunnel syndrome have high canal pressures, especially at the extremes of wrist positions [234]. Carpal tunnel pressures are maximal with maximal wrist extension in these patients [234]. Nerve gliding associated with wrist movements can be considerably increased and nerve strain substantially reduced by simultaneously moving neighboring joints [68].

Clinical Presentation and Diagnosis

Carpal tunnel syndrome classically presents with nocturnal paresthesias in a median nerve distribution that gradually worsen as nerve injury progresses [12]. Late in the disease course, patients develop sensory loss and thenar muscle atrophy [12]. Nocturnal paresthesias in the radial three digits of the hand are nearly pathognomonic [223]. Paresthesias occur characteristically in "fixed wrist activities" such as reading, driving, or use of a computer keyboard or mouse [223]. With advanced nerve compression, patients experience weakness and atrophy of the abductor pollicis brevis and opponens pollicis muscles [223]. Patients typically adapt to the slow onset of thenar weakness without functional impairments [223].

The reported specificity of the Tinel sign at the wrist varies from 55% to 100% [12]. The reported specificity of the Phalen test varies from 54% to 98% [12]. Wrist flexion and vibration perception demonstrated the best overall agreement and accuracy among clinical tests [165]. The wrist flexion test described by Phalen and Kendrick has real diagnostic and prognostic value [230]. Diagnosis should be based on clinical acumen and physical examination in the vast majority of patients [11]. Ultrasound sensitivity is reported to be over 97% when the median nerve diameter is greater than 10 mm² at the level of the pisiform [11]. In patients with negative electrodiagnostic studies but a clinical diagnosis, high-resolution ultrasonography has a sensitivity of 73% if the cutoff of 9.4 mm² at the inlet of the carpal tunnel is used [11].

Nerve conduction studies are useful to assess focal demyelination by delayed conduction velocities of the median nerve at the wrist [12]. Needle electromyography is considered an optional adjunct to nerve conduction studies and is mostly used to differentiate carpal tunnel syndrome from other possible causes [12]. Documenting muscle atrophy and fibrillations on needle EMG can assist with identifying severity and help with prognostication [12]. MRI is not routinely used for diagnosis [11]. A major advantage of MRI is its high soft-tissue contrast, which gives detailed images of bones and soft tissues [11]. The AAOS Appropriate Use Criteria provide guidance on scenarios where electrodiagnostic studies are or are not necessary [8]. Carpal tunnel syndrome impairs the ability to perform precision pinch across the movement and at digit-contact [210].

Anatomical Considerations for Surgery

The palmar cutaneous branch of the median nerve lies in the interval between the palmaris longus and the flexor carpi radialis tendons [59]. It is located deep to the thenar crease and radial to the palmaris longus [251]. Severing this branch frequently causes a painful neuroma that may later require excision from the scar [59]. The flexor retinaculum includes the distal deep fascia of the forearm proximally, the transverse carpal ligament, and the aponeurosis between the thenar and hypothenar muscles [59]. A successful carpal tunnel release usually requires division of all components of the flexor retinaculum [59]. The superficial palmar arterial arch is located 5 to 8 mm distal to the distal margin of the transverse carpal ligament [59]. The recurrent motor branch of the median nerve may perforate the transverse carpal ligament and leave the median nerve on the volar side [59]. Fibers of the transverse carpal ligament can extend distally farther than expected [59]. The scapholunate interosseous ligament is a richly innervated ligament that contributes to carpal proprioception [226]. The ulnar nerve requires over 2 cm of unimpeded movement both at the elbow and wrist to perform full motions of the upper extremity involving the shoulder, elbow, wrist, and fingers [203].

Prognosis and Recovery

Timing of recovery after carpal tunnel decompression is related to preoperative electrodiagnostic studies [74]. Reinnervation in patients with decreased conduction velocity and increased latency will take just a few months [74]. Axonal regeneration indicated by decreased CMAP will take much longer for recovery [74]. Following decompression for mild or moderate nerve compression, there will be return of "painless" sensation to the digits innervated by the median nerve [74]. Reinnervation of the thenar muscles takes longer than sensory recovery and return of motor function may not be complete in patients with severe carpal tunnel syndrome [74]. Patients can expect restoration of full range of motion at the wrist after decompression [74]. Patients with severe carpal tunnel syndrome and thenar atrophy have been described to experience a postoperative flare with complaints of pain, stiffness, and swelling likely caused by a reinnervation hypersensitivity [74].

Pillar pain after carpal tunnel release is likely microneuroma related [74]. The risk of pillar pain can be minimized by placing the incision in the watershed area between the median and ulnar palmar cutaneous nerves, approximately 6 mm ulnar to the thenar crease [74]. Patients with long-standing symptoms, severe atrophy of the thenar musculature, and dense sensory loss should be cautioned that release may not lead to complete recovery of sensation or thenar strength [223].

Classification

Carpal tunnel syndrome is the most frequently diagnosed, best understood, and most easily treated entrapment neuropathy [2]. The diagnostic approach should shift from a dichotomous, all-or-none model to one that considers probabilities of disease [38]. Diagnostic tools such as the hand diagram and CTS 6 are utilized to form baseline probabilities and guide management based on estimated probability and severity [38]. A management model based on a questionnaire score for symptoms and signs was developed to select patients with a high probability of carpal tunnel syndrome for carpal tunnel release without nerve conduction studies [175].

CTS-6: The Six-Item Carpal Tunnel Syndrome Symptoms Scale and Palmar Pain Scale (CTS-6) is a validated clinical diagnostic tool with high sensitivity and specificity [246]. A Portuguese version of the CTS-6 allows for an objective evaluation of the treatment of carpal tunnel syndrome [157]. In comparative studies, the sensitivities of ultrasound, CTS-6, and nerve conduction studies for the diagnosis of carpal tunnel syndrome were 91% (95% CI, 81% to 98%), 95% (95% CI, 86% to 99%), and 91% (95% CI, 81% to 97%), respectively [246].

Delphi Diagnostic Scale: A diagnostic scale for carpal tunnel syndrome was developed in three stages using a Delphi technique to rank criteria in order of diagnostic importance [252]. The top 20 ranked diagnostic items for carpal tunnel syndrome were collapsed into 8 major criteria to balance comprehensiveness and feasibility [252].

Clinical Severity: In a study of 177 wrists, clinical severity was categorized into mild (intermittent symptoms of low intensity), moderate (intermittent and troublesome symptoms), and severe (constant or nearly constant symptoms interfering with function) [254]. Among 177 patient specimens, 13 (7%) were classified as mild, 121 (69%) as moderate, and 42 (24%) as severe based on the severity of symptoms [254].

Electrodiagnostic Severity: Electrodiagnostic severity grading is recommended to identify the degree of nerve injury and allow the referring physician to utilize the report optimally for patient management [61]. A new method for grading electrodiagnostic severity combines prior ranking criteria into 3 basic categories [61]. Grading of electrodiagnostic findings qualifies that it is the median neuropathy being graded and not the syndrome of carpal tunnel syndrome [61]. Median neuropathy severity was quantified as mild (0), moderate (1), or severe (2) based on the categorization of electrodiagnostic findings applied by the clinician [250]. In a sample of 90 subjects, 18.9% were at EM grade 1, 26.7% at grade 2, 42.2% at grade 3, and 12.2% at grade 4 or more [248].

Post-Fracture Classification: In a retrospective study of 105 wrists with carpal tunnel syndrome after distal radius fracture, 47 were grade 1 (mild), 45 were grade 2 (moderate), and 13 were grade 3 (severe) [218].

Other Considerations: The AAOS Appropriate Use Criteria provide guidance on diagnostic and treatment options for carpal tunnel syndrome, including scenarios where electrodiagnostic studies are or are not necessary [8]. Electrodiagnostic studies are recommended by multidisciplinary groups for carpal tunnel syndrome diagnosis, though this remains controversial [160]. Electrodiagnostic studies should not be used to diagnose radiculopathy [160]. The document defines standards, guidelines, and options for electrodiagnostic studies of carpal tunnel syndrome based on a critical review of the literature [22]. Alterations in the morphology of the carpal tunnel in patients with carpal tunnel syndrome can be measured in the district general hospital setting [188]. Ultrasound-based classification models may further support the diagnosis of carpal tunnel syndrome [67]. The altered hand dynamics in carpal tunnel syndrome patients may have implications for the pathophysiology and clinical evaluation of the condition [67]. One cannot rely entirely on the existing anatomical classifications of the median nerve in the carpal tunnel [119]. Among the large group of carpal tunnel syndromes, it is possible to distinguish two distinct entities related to a persistent median artery [135]. Ulnar tunnel syndrome is of two distinct types: Type 1 involves compression at the level of the pisiform with sensory and motor involvement, and Type 2 involves compression distal to the pisiform with motor involvement only [170]. Patients with problematic class II carpal tunnel syndrome or failed carpal tunnel median neuropathy class III are likely to do poorly with a simple surgical release [121].

Clinical Presentation

Epidemiology and Demographics

Carpal tunnel syndrome (CTS) is the commonest peripheral nerve problem in the United Kingdom [91] and affects 3% to 6% of American adults [95]. In Finland, it is a common diagnosis in specialized care, with higher frequency among women and incidence increasing up to late middle age [80].

Risk Factors and Etiology

The American Academy of Orthopaedic Surgeons (AAOS) guidelines identify body mass index (BMI) and high hand repetition rate as factors with strong evidence of increased risk for CTS development [12]. Proposed mechanisms for these associations range from hormonal changes to edema, though no consensus exists regarding their role in pathophysiology [12]. Pathogenesis involves bony abnormalities, acromegaly, wrist flexion or extension, forearm and wrist fractures, dislocations, posttraumatic arthritis, musculotendinous variants, aberrant muscles, local tumors, persistent medial artery, hypertrophic synovium, and hematoma [11]. Alterations of fluid balance implicated in pathogenesis include pregnancy, menopause, eclampsia, thyroid disorders (especially hypothyroidism), renal failure, long-term hemodialysis, Raynaud disease, obesity, lupus erythematosus, scleroderma, amyloidosis, and Paget disease [11]. CTS can be the initial manifestation of scleroderma (systemic sclerosis) [82] or an early manifestation of systemic amyloidosis [83].

Symptoms and Signs

Classically, CTS presents with nocturnal paresthesias in a median nerve distribution that gradually worsen as nerve injury progresses [12]. Late in the disease course, sensory loss and thenar muscle atrophy develop [12]. Many patients report hand pain or symptoms not directly referable to the median nerve [12]. A strong clinical history should direct the clinician to the diagnosis even when patient-reported symptoms are not classic [12]. However, specialists do not consider pain without paresthesia or a noncharacteristic symptom distribution as characteristic of CTS [35]. Symptoms and signs characteristic of CTS significantly, but incompletely, coincide with electrophysiological testing [78]. Symptoms may improve without surgery [15].

Physical Examination and Provocative Tests

Thenar atrophy and abductor pollicis brevis weakness can be detected on physical examination [12]. Provocative tests aim to enhance or induce symptoms of a damaged median nerve as it passes through the carpal tunnel [18]. A positive Tinel sign at the wrist or symptom development after the provocative Phalen maneuver can aid diagnosis [12]. The reported specificity of the Tinel sign varies from 55% to 100% [12], while the specificity of the Phalen test varies from 54% to 98% [12]. Although the specificity of Tinel and Phalen sign tests is high, their sensitivity is low, limiting their diagnostic value [43]. Tinel sign and Phalen test maneuvers are most reliable as adjuncts to other diagnostic tests [12]. The Tinel sign is of no diagnostic value in individual patients with suspected CTS [36] and has been studied and found not to be useful in the evaluation of patients with CTS [101].

Diagnostic Criteria and Discordance

There is no universally agreed-upon reference standard test for diagnosing CTS [32], and no standardized diagnostic criteria have been established [79]. No consensus has been reached as to whether CTS is a clinical or an electrophysiologic diagnosis [79]. Clinicians use symptoms and signs alone, electrodiagnostic testing, or both to diagnose CTS [32]. Even when the patient presents with a typical clinical presentation, the diagnosis is only confirmed electrophysiologically in 61% of cases [29]. There is a severe discordance between the estimated prevalence of mild-to-moderate CTS based on clinical signs and symptoms (73%) versus electrodiagnostic studies and ultrasound (51%) [87]. Some patients are diagnosed and treated for CTS who do not have median neuropathy at the wrist [42]. Highly sensitive tests are required to assess or exclude the diagnosis in one quarter of cases of CTS [81].

Tools like the hand diagram and CTS 6 can be used to form baseline probabilities and guide management based on estimated probability and severity [38]. The CTS-6 assigns a numerical value to 6 diagnostic criteria including nocturnal numbness, numbness in the median nerve territory, positive Phalen's test, positive Tinel sign, loss of 2-point discrimination, and thenar atrophy [95]. CTS-6 scores range from 0 to 26, and a score >12 is associated with a 0.80 probability of CTS [95]. CTS-6 increased diagnostic probability in CTS, especially in patients with fewer symptoms [95]. Hand symptom diagrams have the advantages of being low cost, easy to administer, and acceptable in almost all populations [98]. The published consensus epidemiological case definition for CTS requires a combination of hand symptom diagram ratings and electrodiagnostic studies [98]. The Boston Carpal Tunnel Questionnaire has demonstrated similar internal consistency, reliability, and construct validity in diagnosis and severity assessment of CTS symptoms as the CTS-6 [95].

Ancillary Diagnostic Testing

Nerve conduction studies remain a useful diagnostic tool in CTS, as focal demyelination can be assessed by delayed conduction velocities of the median nerve at the wrist [12]. Needle electromyography is currently considered an optional adjunct to nerve conduction studies and is mostly used to differentiate CTS from other possible causes [12]. Documenting muscle atrophy and fibrillations on needle electromyography can assist with identifying severity of the disease and help with prognostication [12]. Preoperative nerve conduction studies did not improve the outcomes of surgery for CTS in some studies [99]. Nerve conduction studies are suggested to be desirable only in doubtful cases, in patients with atypical symptoms, or unclear course of the disease [99]. Electrodiagnostic testing has been reported to have 13% false-negative and 18% false-positive rates [79]. Postoperative electrodiagnostic testing may be helpful in assessing recurrent symptoms [11].

Advances in ultrasonography technology have allowed rapid diagnosis of CTS by identification of enlarged, hypoechoic median nerve fascicles proximal to the carpal tunnel [12]. Controversy remains as to whether ultrasonography evaluation could replace electrophysiology in the diagnosis of CTS [12]. Ultrasound sensitivity for CTS has been reported to be over 97% when the median nerve diameter is greater than 10 mm² at the level of the pisiform [11]. In patients with negative electrodiagnostic studies but a clinical diagnosis of CTS, high-resolution ultrasonography has been used to diagnose CTS with a sensitivity of 73% if the cutoff of 9.4 mm² at the inlet of the carpal tunnel is used [11]. The composite sensitivity and specificity of ultrasound for the diagnosis of CTS, using all studies, were 77.6% (95% CI 71.6–83.6%) and 86.8% (95% CI 78.9–94.8%), respectively [102]. Ultrasonography might represent a useful tool for the diagnosis of CTS since this procedure has demonstrated a high sensitivity and specificity [100]. Both inlet and outlet level ultrasonography measurements show sufficient accuracy for their use in clinical settings, though the overall accuracy for the diagnosis of CTS was slightly higher for the inlet level than for the outlet one [100]. The addition of outlet measurements to inlet ones does not increase the overall accuracy for the diagnosis of CTS [100]. Ultrasonography is a very useful method in the diagnostic evaluation of CTS, capable of discovering the cause of median nerve compression, especially in cases with an atypical clinical presentation [39]. Preoperative examinations such as ultrasound, CT, and MRI can provide a diagnostic contribution or help establish a differential diagnosis in cases of atypical CTS [40].

MRI and/or ultrasonography imaging should be considered in patients who have new, persistent, or recurrent symptoms after surgery to delineate the etiology of the symptoms [12]. Reports of MRI in CTS are promising, especially with newer techniques such as diffusion tensor imaging, but MRI is not routinely used for diagnosis [11]. A major advantage of MRI is its high soft-tissue contrast, which gives detailed images of bones and soft tissues [11].

The value of a test for CTS depends on the purpose of performing the test, such as establishing diagnosis for treatment, screening, or determining etiology [94]. For diagnostic purposes before recommending surgery for CTS or in epidemiologic studies concerned with causation, specificity of case diagnosis should take precedence over sensitivity for the sake of validity [94]. The predictive value of any test is dependent on the prevalence of disease in the population being tested [94]. Discrepancies in studies examining tests for CTS exist in part because of the different nature of the populations being tested, which may result in spectrum bias [94]. Some patients with negative findings on electrodiagnostic studies may have had proximal neuropathy, radiculopathy, multiple sclerosis, or other diseases that may present with clinical symptoms of numbness and tingling in the hand [101]. Intracarpal tunnel injection of corticosteroid will alter the electrodiagnostic testing results for variable periods of time [101].

The diagnosis of CTS should be based on clinical acumen and physical examination in the vast majority of patients, and ancillary tests should be reserved for patients without clear presentations [11]. Surgeons with subspecialty training in hand surgery are able to accurately diagnose CTS with a high sensitivity and specificity based on clinical assessment alone [95]. Additional tools are imperative to streamline clinician assessment in other settings, confirm diagnoses, establish baselines, and provide standardized evidence for workers compensation, insurance, and legal cases [95].

Differential Diagnosis and Special Considerations

The diagnostic process to differentiate pronator syndrome from CTS remains a challenge due to overlapping symptoms and limited reliable information in the literature [92]. Although pronator syndrome is often misdiagnosed and does not occur as frequently as CTS, its clinical features are well described, and the diagnosis should be made if the clinical features are understood and reasonable suspicion exists [90]. Radial tunnel syndrome is relatively uncommon but is an important cause of lateral forearm pain, with clinical examination being a crucial part of the diagnosis [96]. This case highlights the importance of considering uncommon aetiologies in patients with atypical symptoms of CTS [89]. Urgent carpal tunnel release is recommended for patients reporting onset and worsening of numbness over hours after reduction to diagnose and treat acute CTS [88]. Delayed CTS is typically due to alterations in carpal tunnel anatomy and requires etiology-specific treatment [93].

Investigations

Clinical Diagnosis and Provocative Tests: The diagnosis of carpal tunnel syndrome is established through clinical history, physical examination, and supportive diagnostic testing, with the exclusion of other possible disorders [12]. While a positive Tinel sign at the wrist or symptom development after a provocative Phalen maneuver can aid diagnosis [12], these tests are most reliable as adjuncts to other diagnostic methods [12]. Conversely, it is concluded that Tinel's sign is of no diagnostic value in individual patients with suspected carpal tunnel syndrome [36]. Because there is no true diagnostic gold standard for most compressive neuropathies, diagnosis relies on a combination of clinical presentation, physical examination findings, imaging modalities, and electrodiagnostic studies [213]. Ancillary tests should be reserved for patients without clear presentations [11].

Electrodiagnostic Studies: Documenting muscle atrophy and fibrillations on needle EMG assists in identifying disease severity and aids in prognostication [12]. Pre-operative electrodiagnostic testing predicts the time to resolution of symptoms after carpal tunnel release [1]. However, with clinical evaluation as the reference standard, electrodiagnostic, ultrasound, and MRI are not helpful in making a diagnosis of pronator syndrome concurrent with carpal tunnel syndrome [208].

Ultrasonography: There is sufficient evidence for orthopaedic and hand surgeons to seriously consider using ultrasound as the first-line confirmatory diagnostic tool for carpal tunnel syndrome [158]. High-resolution ultrasound is a valid and accurate diagnostic modality that correlates with CTS severity [190] and is a reliable modality for imaging the wrist in these patients [197]. When carpal tunnel syndrome is suspected, an ultrasound examination can confirm the diagnosis and uncover the underlying etiology, though nerve conduction studies may still be required [216]. The value of routine sonographic assessment is demonstrated in evaluating patients with carpal tunnel syndrome [217]. In patients with negative electrodiagnostic studies but a clinical diagnosis of carpal tunnel syndrome, high-resolution ultrasonography has been used to diagnose carpal tunnel with a sensitivity of 73% if the cutoff of 9.4 mm² at the inlet of the carpal tunnel is used [11]. This finding supports the use of ultrasound in the diagnosis of carpal tunnel syndrome by confirming that cross-sectional area at the median nerve should not be elevated due to cervical radiculopathy [221]. Space occupying lesions of the carpal tunnel may be easily missed, and a carpal tunnel view and ultrasound scanning in suspected cases is mandatory [205].

Magnetic Resonance Imaging (MRI): MRI and/or ultrasonography imaging should be considered in patients who have new, persistent, or recurrent symptoms after surgery to delineate the etiology of the symptoms, either due to incomplete ligament division, iatrogenic injury, or other cause [12]. Although MRI is not routinely used for investigation of nerve entrapment syndromes of the upper extremity, its unique contrast resolution makes it appropriate for specific situations [125]. Magnetic resonance imaging is a useful preoperative method to identify the cause and location of nerve compression at the wrist when the symptoms and physical findings are inconclusive [127]. Ultrasound and MRI are essential for assessing the invasive character of tumors in carpal tunnel syndrome [129]. Imaging can be used to help evaluate any other lesions of concern and can also simultaneously add support for the diagnosis of carpal tunnel syndrome by demonstrating changes in the cross-sectional area of the median nerve at the level of the inlet [154]. MRI of patients 3 months after successful endoscopic carpal tunnel release does not demonstrate a discrete gap or separation in the flexor retinaculum overlying the median nerve but may be useful for evaluating median nerve morphology [187]. MRI three-dimensional reconstruction is a valid and reproducible technique for measuring carpal tunnel volume and dimensions, with considerable research potential for the evaluation of the relationship between the carpal canal and its contents before and after carpal tunnel release [212]. MRI-based measurements of median nerve cross-sectional area, particularly at the inlet level, suggest that relying solely on cross-sectional area measurements may not be an optimal diagnostic strategy for carpal tunnel syndrome in patients with equivocal clinical symptoms [227]. In cases with swelling or tenderness on the area of wrist flexion creases, it is important to obtain a carpal tunnel view, and MRI and/or CT should be supplemented in order to rule out space occupying lesions around the carpal tunnel, if necessary [224]. High-resolution magnetic resonance imaging is recommended to evaluate complex cases of nerve entrapment [166].

Plain radiography: Although wrist radiography is appropriate for some specific patient subgroups when suggested by history or findings on physical examination, its use as a routine screening procedure in most patients with carpal tunnel syndrome seems unjustified [220].

Treatment

Non-Operative

Initial conservative management for mild to moderate carpal tunnel syndrome includes hand therapy, activity modification with splinting, and corticosteroid injection [12]. Splinting is a basic, inexpensive, and effective intervention [171]. Steroid injection into the carpal tunnel is effective and may be superior to splinting alone when combined with it [171]. A short pulse of systemic steroid treatment might be effective, although the risk of long-term complications from even short systemic exposure is not fully known [171]. Systemic steroid treatment is superior to placebo but is not as effective as local steroid injection [171]. Local steroid injection has an overall success rate of 45% after a mean follow-up of 16 months [115]. One-third of patients experience a long-term beneficial effect from corticosteroid injection, especially when they have a good initial response [24]. Steroid injection combined with splinting results in modestly greater reduction of symptoms, functional recovery, and improvement of nerve function at 12-week follow-up compared to steroid injection alone [113]. Platelet-rich plasma (PRP) is a safe modality that effectively relieves pain and improves disability [118]. Nerve and tendon gliding exercises may significantly decrease the number of patients going on to surgery at an average of 23 months' follow-up [161]. The duration of compression of the median nerve at the carpal canal is significantly related to the effectiveness of conservative management [156]. Patients can be successfully treated without surgery [41]. For patients who reject surgery, splinting, acupuncture, and steroid injection can play a role in management [162]. Nonsurgical methods for mild to moderate carpal tunnel syndrome are effective and underused, with slight complications compared to surgical risks [46]. Nonoperative treatment is a viable option for managing carpal tunnel syndrome, potentially avoiding surgery and reducing overall cost and time away from work if applied consistently and early [85]. Both surgical and conservative interventions provide treatment benefit [112]. Surgical treatment relieves symptoms significantly better than splinting [108].

Operative

Indications: Carpal tunnel release should be recommended to patients who have failed nonsurgical treatment [19]. Early operative treatment is more likely to lead to a complete recovery [25].

Surgical Approach / Technique: Surgical decompression of the transverse carpal ligament is the benchmark procedure [12]. No approach has yet demonstrated superiority over other techniques currently in use in large, randomized controlled surgical trials [12]. There has been no definitive difference in long-term functional outcome between open and endoscopic carpal tunnel release [12]. Patients undergoing endoscopic carpal tunnel release often have a more abbreviated recovery with less incisional pain compared to open release [12]. Endoscopic carpal tunnel release is associated with an increased cost of the procedure and a slightly higher rate of iatrogenic transient neurapraxia compared to open release [12]. Open and endoscopic carpal tunnel release procedures provided similar symptom relief and hand strength and sensibility recovery, and were safe for patients with carpal tunnel syndrome [104]. Mini-open carpal tunnel release is performed with a limited, targeted incision of 1.5 to 2 cm, with low complication rates and high rates of patient satisfaction [12]. Ultrasound-guided carpal tunnel release (UGCTR) and endoscopic carpal tunnel release (ECTR) are safe and effective treatments [106]. Carpal tunnel release using the Paine retinaculotome inserted through a palmar incision has demonstrated itself to be efficient and safe, with symptoms and signals relieved in more than 95% of patients [117]. A randomized study failed to show benefit in a 2-week course of hand therapy after carpal tunnel release using a short incision [116].

Other Considerations: Carpal tunnel surgery is effective, but many patients will still have residual symptoms after the surgical treatment [51]. Patients with carpal tunnel syndrome receiving chronic narcotic pain medication for nonhand pain benefited from endoscopic carpal tunnel release, experiencing a longer recovery period but ultimately achieving the same outcomes as patients without chronic pain [107]. Symptoms in the non-dominant hand resolved faster after carpal tunnel release in patients with severe carpal tunnel syndrome [111].

Complications and Recurrence

Postoperative complications of carpal tunnel release include nerve, arterial, or tendon injury with a 0.5% incidence and complex regional pain syndrome with a 2.1% to 5% incidence [12]. The recurrence rate after primary carpal tunnel release is approximately 2% [73]. Complications and failures after carpal tunnel release are estimated to be 3% to 19% [73]. Unrelieved symptoms may lead to repeat operation in 12% of patients [73]. Rates of recurrent symptoms after carpal tunnel release may be as high as 4.5% [12]. Recurrent symptoms after carpal tunnel release are thought to be due to scarring, tenosynovitis, and/or adhesive tethering [12]. Findings reported at reoperation for recurrent carpal tunnel syndrome include incomplete release of the transverse carpal ligament, re-formation of the flexor retinaculum, scarring in the carpal tunnel, median or palmar cutaneous neuroma, palmar cutaneous nerve entrapment, recurrent granulomatous or inflammatory tenosynovitis, and hypertrophic scar in the skin [73]. Repeat open median nerve neurolysis is often performed when symptoms recur, either by itself or in conjunction with local tissue flaps or wraps [12]. Neither repeat open median nerve neurolysis alone nor in conjunction with local tissue flaps or wraps has demonstrated superiority for treatment of recurrent carpal tunnel symptoms [12]. Revision carpal tunnel release is less successful than primary release, with up to 40% of patients having unfavorable outcomes [105]. Effective management of recalcitrant carpal tunnel syndrome requires an accurate diagnosis and a comprehensive treatment strategy [105]. Patients with normal preoperative electrodiagnostic studies, patients who had filed for compensation, and patients with ulnar nerve symptoms have been reported to have results significantly worse than patients without these findings after carpal tunnel release [73]. Temporary relief following a corticosteroid injection is a good prognostic sign when considering reoperation for recurrent carpal tunnel syndrome [73]. Recurrent carpal tunnel syndrome was demonstrated more often in patients with diabetes [73]. Persistent symptoms and more than one prior carpal tunnel syndrome had higher odds of not changing or worsening postoperative pain after revision surgery [73]. Higher preoperative pain, use of pain medication, and workers’ compensation were significant predictors of higher postoperative average pain after revision surgery [73]. A minimally invasive surgical option using a synovial flap is interesting and should be part of the therapeutic arsenal for recurrent carpal tunnel syndromes [56].

Prognosis and Recovery

Reinnervation in patients with decreased conduction velocity and increased latency will take just a few months, but axonal regeneration (decreased CMAP) will take much longer [74]. Reinnervation of the thenar muscles occurs after carpal tunnel decompression, although it takes longer and return of motor function may not be complete in patients with severe carpal tunnel syndrome [74]. Rarely, patients with severe carpal tunnel syndrome and thenar atrophy experience a postoperative flare with complaints of pain, stiffness, and swelling likely caused by a reinnervation hypersensitivity [74]. Patients experiencing a postoperative flare due to reinnervation hypersensitivity are treated with hand therapy and occasionally a short burst of oral steroids [74]. Patients can experience pillar pain after carpal tunnel release, which is likely microneuroma related [74]. If pillar pain develops after carpal tunnel release, patients are referred to hand therapy for scar massage and desensitization [74].

Complications

Overall Incidence: A review of 186 operative cases of carpal tunnel syndrome disclosed a total of 34 complications in 22 patients, with an incidence of 12% [182]. The short-term complication and secondary surgery rates of mini-open carpal tunnel release are low [123].

Nerve Palsy: In a study of 90 cases of dual-portal endoscopic release, 4 cases reported hypesthesia that was worse than preoperatively [214]. In the same study, 4 cases reported paresthesia that was worse than preoperatively [214].

Infection: An infectious etiology should be considered in atypical carpal tunnel syndrome presentations or when symptoms persist after surgery [204].

Other Considerations: The long-term outcome of carpal tunnel release is favourable with a rate of recurrence of 2.5% and a rate of persistence of 3.75% [48]. The incidence of revision following primary decompression in chronic carpal tunnel syndrome is 3.42% [191]. Revision surgery for carpal tunnel syndrome is most likely to occur early after surgery [191]. The median time for revision carpal tunnel release is 351 days, with an interquartile range of 144–966 days [191]. Decompression for recurrent carpal tunnel syndrome provides significant functional improvement and patient satisfaction [64]. Patients undergoing revision open carpal tunnel decompression for recurrent carpal tunnel syndrome experience a significant improvement in function and health-related quality of life [64]. Patients with a prior history of carpal tunnel syndrome are at increased risk of recurrent symptoms after radial artery cannulation [132]. Patients remaining on a prescription opioid after carpal tunnel release reported worse outcomes compared to those who discontinued [143]. Routine out-patient follow-up may not be necessary for carpal tunnel decompression, as a telephone clinic can be safely implemented to identify potential complications at an early stage [142].

Recovery

Light activity (weeks): The evidence base does not specify a distinct week-range for light activities such as desk work or driving. However, patient-reported symptoms and function improve significantly up to 12 weeks after open carpal tunnel release [134].

Full activity (months): Specific month-ranges for the return to manual work or sport are not defined in the provided evidence. Functional recovery is noted to progress from the third month to the sixth month following surgery, a period during which sensory, functional, and symptomatic recovery affects sleep parameters and improves sleep quality [146].

Complete recovery / outcome plateau (months): Long-term improvement in patients with diabetes remains after carpal tunnel release to the same extent as for patients without diabetes [53]. Patients with carpal tunnel syndrome and metabolic syndrome experience delayed functional recovery; however, noteworthy improvements in symptom severity and hand function are similar to those in patients without metabolic syndrome 1 year after surgery [57]. Ultrasound-guided carpal tunnel release improves hand function and reduces discomfort, with improvement persisting beyond one year [63].

Rehabilitation protocol: The provided evidence does not detail specific physical therapy phasing, immobilisation durations, or weight-bearing/ROM progression protocols.

Functional milestones: Patients with clinical features of carpal tunnel syndrome but normal nerve conduction studies report significant improvements in patient-reported outcomes at 1 year after decompression, although this improvement is significantly less than that observed in patients with abnormal nerve conduction studies [65].

Other Considerations: Carpal tunnel release surgery continues to evolve with new diagnostic techniques and less-invasive surgical methods [27]. The condition requires attention to service delivery, awareness of systemic disease, and long-term nerve biology, rather than just surgical competence [16]. Clinical severity at intake is the most important factor in estimating symptom relief after surgical treatment [260]. Patients with mild or moderate carpal tunnel syndrome experience a faster time to resolution of daytime numbness and tingling compared with patients with severe carpal tunnel syndrome [253]. The interpretation of a single aspect of a single nerve conduction study (one sensory latency) has little value in assessing the prognosis of a neuropathy such as carpal tunnel syndrome [262]. Carpal canal pressure is related to the latency and to the duration of symptoms [259]. Prolonged recovery time in patients with carpal tunnel syndrome suggests a possible cause for carpal tunnel syndrome in the occupational setting [62]. Patients with a history of ulnar nerve lesions are at a significantly increased risk of developing carpal tunnel syndrome, especially within the first 2 years [50]. The incidence of contralateral carpal tunnel release surgery is substantial over long-term follow-up [49]. Among patients with carpal tunnel syndrome, extended follow-up 11 to 16 years after surgery showed no significant differences in symptom severity or functional status scores between open and endoscopic release groups [133]. At an average follow-up of 4.5 years, 28% of hands had persistent symptoms after Agee endoscopic technique, but results were scarcely different from the conventional technique with no patient requiring reoperation [140]. A significant correlation was found between patients with an incomplete release and lack of a symptom-free period after carpal tunnel release [265]. Recurrent carpal tunnel syndrome presents following a long symptom-free period after primary carpal tunnel decompression, and hand function regresses to a similar level of disability [266]. The symptoms of carpal tunnel syndrome may improve without surgery, but further studies are needed to understand the natural history of the disorder [15]. Patients with early carpal tunnel syndrome can be managed with conservative treatment, but carpal tunnel release should be recommended to patients who have failed nonsurgical treatment [19].

Key Evidence

• [Paper] Carpal tunnel syndrome is the most frequently diagnosed, best understood and most easily treated entrapment neuropathy. [2] (10.1016/0266-7681(88)90046-0)
• [L5] The article highlights ongoing debates in the diagnosis and management of carpal tunnel syndrome, including the utility of diagnostic tests, outcome measurement standardization, and cost-effectiveness calculations, while encouraging high-quality research to resolve these issues. [4] (10.1177/17531934221080631)
• [L4] Patients with end-stage carpal tunnel syndrome do not have worse long-term patient-reported outcomes after carpal tunnel release compared with the general population. [6] (10.1177/1558944719857815)
• [L5] The AAOS Appropriate Use Criteria provide guidance on diagnostic and treatment options for carpal tunnel syndrome, including scenarios where electrodiagnostic studies are or are not necessary and the appropriateness of surgical versus nonsurgical interventions. [8] (10.5435/jaaos-d-17-00454)
• [L4] Endoscopic carpal tunnel release is safe and yields predictable long-term results. [9] (10.1016/s0894-1130(12)80295-x)
• [L5] The authors conclude that more accurate means of selecting patients who will benefit from surgery in the early stages of carpal tunnel syndrome are needed. [10] (10.1016/s0363-5023(98)80143-3)
• [L3] The symptoms of carpal tunnel syndrome may improve without surgery, but further studies are needed to understand the natural history of the disorder. [15] (10.1177/1753193411410155)
• [L5] Carpal tunnel syndrome is a condition that requires attention to service delivery, awareness of systemic disease, and long-term nerve biology, rather than just surgical competence. [16] (10.1177/17531934261433793)
• [L3] Carpal tunnel decompression surgery is safe and effective, with 97% of patients experiencing complete or partial relief. [17] (10.1054/jhsb.2001.0616)
• [L4] [18] (10.1038/ncpneuro0216)
• [Paper] Patients with early carpal tunnel syndrome can be managed with conservative treatment, but carpal tunnel release should be recommended to patients who have failed nonsurgical treatment. [19] (10.1016/b978-0-12-385157-4.00652-7)
• [L5] The AAOS developed Appropriate Use Criteria to help determine the appropriateness of treatments for carpal tunnel syndrome by synthesizing evidence with expert opinion. [20] (10.5435/jaaos-d-17-00451)
• [L1] The document defines standards, guidelines, and options for EDX studies of carpal tunnel syndrome based on a critical review of the literature. [22] (10.1212/wnl.58.11.1589)
• [L4] Surgical decompression of the carpal tunnel is the treatment of choice and long-term follow-up is recommended. [23] (10.1016/s0266-7681(96)80023-4)
• [L3] One-third of patients with carpal tunnel syndrome had a long-term beneficial effect from corticosteroid injection, especially when they had a good initial response. [24] (10.1177/1753193412469580)
• [L5] Early operative treatment is more likely to lead to a complete recovery in carpal tunnel syndrome. [25] (10.1016/0266-7681_90_90060-h)
• [L5] A rational plan of therapy is available for each category of complications of carpal tunnel syndrome. [26] (10.1016/s0749-0712(21)00316-4)
• [L4] Carpal tunnel release surgery continues to evolve with new diagnostic techniques and less-invasive surgical methods. [27] (10.1097/gox.0000000000002692)
• [L4] The procedure is not suitable for severe carpal tunnel syndrome or when direct visualization of the median nerve and the carpal tunnel is necessary. [28] (10.1016/s0266-7681(02)00363-7)
• [L3] Even when the patient presents with a typical clinical presentation of carpal tunnel syndrome the diagnosis is only confirmed electrophysiologically in 61% of cases. [29] (10.1016/0266-7681(94)90244-5)
• [L2] There is no universally agreed-upon reference standard test for diagnosing carpal tunnel syndrome, and clinicians use symptoms and signs alone, electrodiagnostic testing, or both. [32] (10.1016/j.jhsa.2014.03.039)
• [L4] Specialists do not consider pain without paresthesia or a noncharacteristic symptom distribution as characteristic of carpal tunnel syndrome. [35] (10.1016/j.jhsa.2024.07.004)
• [L4] It is therefore concluded that the sign is of no diagnostic value in individual patients with suspected carpal tunnel syndrome. [36] (10.1016/0266-7681(87)90190-2)
• [L5] The diagnosis of carpal tunnel syndrome should shift from a dichotomous, all-or-none approach to one that considers probabilities of disease, utilizing tools like the hand diagram and CTS 6 to form baseline probabilities and guide management based on estimated probability and severity. [38] (10.1016/j.jhsa.2009.12.034)
• [L5] Ultrasonography is a very useful method in the diagnostic evaluation of carpal tunnel syndrome, capable of discovering the cause of median nerve compression, especially in cases with an atypical clinical presentation. [39] (10.1007/s11552-012-9435-z)
• [L5] Preoperative examinations such as ultrasound, CT, and MRI can provide a diagnostic contribution or help establish a differential diagnosis in cases of atypical carpal tunnel syndrome. [40] (10.1016/j.main.2006.03.001)
• [L4] Patients with carpal tunnel syndrome can be successfully treated without surgery. [41] (10.1016/0363-5023(93)90329-2)
• [L4] Some patients are diagnosed and treated for CTS who do not have median neuropathy at the wrist. [42] (10.1016/s0363-5023(98)80089-0)
• [Paper] [43] (10.1016/j.apmr.2014.06.022)
• [L1] Successful treatment of carpal tunnel syndrome is commonly defined based on a patient-reported outcome measure (PROM), highlighting recent efforts to measure outcomes from the patient’s perspective. [45] (10.1177/1558944720949951)
• [L5] The authors argue that nonsurgical methods for mild to moderate carpal tunnel syndrome are effective and underused, emphasizing patient choice and the slight complications of conservative treatment compared to surgical risks. [46] (10.1016/j.jhsa.2009.05.009)
• [L3] The long-term outcome of carpal tunnel release is favourable with a rate of recurrence of 2.5% and a rate of persistence of 3.75%. [48] (10.1302/0301-620x.99b10.bjj-2016-0587.r2)
• [L3] The incidence of contralateral carpal tunnel release surgery is substantial over long-term follow-up. [49] (10.1016/j.jhsa.2026.05.012)
• [L2] Patients with a history of ulnar nerve lesions are at a significantly increased risk of developing carpal tunnel syndrome, especially within the first 2 years. [50] (10.1016/j.jhsg.2026.100970)
• [L4] Carpal tunnel surgery is effective, but many patients will still have residual symptoms after the surgical treatment. [51] (10.1007/s11552-006-0002-3)
• [L1] In carpal tunnel syndrome, endoscopic surgery was associated with less postoperative pain than open surgery, but the small size of the benefit and similarity in other outcomes make its cost effectiveness uncertain. [52] (10.1136/bmj.38863.632789.1f)
• [L2] Long-term improvement in patients with diabetes remained after carpal tunnel release to the same extent as for patients without diabetes. [53] (10.1016/j.jhsa.2014.01.012)
• [L5] Universal acceptance of diagnostic criteria for carpal tunnel syndrome remains elusive without prospective controlled studies verifying improved performance. [55] (10.1016/j.jhsa.2012.07.041)
• [L4] This minimally invasive surgical option is interesting and should be part of the therapeutic arsenal for recurrent carpal tunnel syndromes. [56] (10.1016/j.hansur.2017.10.066)
• [L3] Patients with CTS and metabolic syndrome have delayed functional recovery after carpal tunnel release, but noteworthy improvements in symptom severity and hand function are similar to those in patients without metabolic syndrome 1 year after surgery. [57] (10.1016/j.jhsa.2015.04.003)
• [L4] There are no clear indications on how health utilities can be integrated into decision analysis models and economic evaluation regarding carpal tunnel syndrome of various severities. [58] (10.1177/1753193420922791)
• [L5] [61] (10.1002/mus.23824)
• [L4] This property of prolonged recovery time in patients with carpal tunnel syndrome suggests a possible cause for carpal tunnel syndrome in the occupational setting. [62] (10.1016/0363-5023(89)90178-0)
• [L4] Ultrasound-guided carpal tunnel release quickly improves hand function and reduces hand discomfort; improvement persisted beyond one year. [63] (10.2214/ajr.20.24383)
• [L4] This study confirms that patients undergoing revision open carpal tunnel decompression for recurrent carpal tunnel syndrome experience a significant improvement in function and health-related quality of life. [64] (10.1177/1753193419875945)
• [L3] Patients with clinical features of carpal tunnel syndrome but normal nerve conduction studies reported significant improvements in patient-reported outcomes at 1 year after decompression, although the improvement was significantly less than that observed in patients with abnormal nerve conduction studies. [65] (10.1177/1753193419866646)
• [L4] The altered hand dynamics in CTS patients may have implications for the pathophysiology and clinical evaluation of CTS, and ultrasound-based classification models may further support the diagnosis of CTS. [67] (10.1002/mus.23246)
• [L5] Nerve gliding associated with wrist movements can be considerably increased and nerve strain substantially reduced by simultaneously moving neighboring joints. [68] (10.1002/jor.20310)
• [L2] Symptoms and signs characteristic of carpal tunnel syndrome significantly, but incompletely coincided with electrophysiological testing. [78] (10.1177/1753193412461860)
• [L3] [79] (10.1016/j.jhsa.2010.05.020)
• [L3] Carpal tunnel syndrome is a common diagnosis in specialized care in Finland, more frequent among women, with incidence increasing up to late middle age. [80] (10.1177/1753193419886741)
• [L3] Highly sensitive tests are required to assess or exclude the diagnosis in one quarter of cases of carpal tunnel syndrome. [81] (10.1016/0266-7681(94)90245-3)
• [L4] Carpal tunnel syndrome can be the initial manifestation of scleroderma (systemic sclerosis). [82] (10.1016/s0363-5023(88)80009-1)
• [L5] Carpal tunnel syndrome can be an early manifestation of systemic amyloidosis, and implementation of a straightforward algorithm using biopsy samples during carpal tunnel release will allow for early diagnosis of these progressive and lethal diseases. [83] (10.1016/j.jhsa.2025.07.017)
• [Paper] Nonoperative treatment is a viable option for the management of carpal tunnel syndrome, potentially avoiding surgery and reducing overall cost and time away from work if applied consistently and early. [85] (10.1016/s0749-0712(02)00023-9)
• [L5] There is a severe discordance between the estimated prevalence of mild-to-moderate carpal tunnel syndrome based on clinical signs and symptoms (73%) versus electrodiagnostic studies and ultrasound (51%), calling into question whether clinicians can confidently diagnose patients with mild-to-moderate CTS. [87] (10.1097/corr.0000000000002822)
• [L5] Urgent carpal tunnel release is recommended for patients reporting onset and worsening of numbness over hours after reduction to diagnose and treat acute carpal tunnel syndrome. [88] (10.1016/j.jhsa.2015.04.005)
• [L4] This case highlights the importance of considering uncommon aetiologies in patients with atypical symptoms of carpal tunnel syndrome. [89] (10.1177/17531934241227809)
• [L5] Although pronator syndrome is often misdiagnosed and does not occur as frequently as carpal tunnel syndrome, its clinical features are well described, and the diagnosis should be made if the clinical features are understood and reasonable suspicion exists. [90] (10.1016/s0278-5919(05)70267-2)
• [L4] Carpal tunnel syndrome is the commonest peripheral nerve problem in the United Kingdom and is readily treatable if recognised early. [91] (10.1136/bmj.39282.623553.ad)
• [L4] The diagnostic process to differentiate pronator syndrome from carpal tunnel syndrome remains a challenge due to overlapping symptoms and limited reliable information in the literature; this review provides a comprehensive clinical comparison to aid in establishing appropriate diagnosis and treatment. [92] (10.3390/diagnostics12102433)
• [L5] Delayed carpal tunnel syndrome is typically due to alterations in carpal tunnel anatomy and requires etiology-specific treatment. [93] (10.1016/j.hcl.2017.09.003)
• [L3] [94] (10.1053/jhsu.1999.0704)
• [L5] Radial tunnel syndrome is relatively uncommon but is an important cause of lateral forearm pain, with clinical examination being a crucial part of the diagnosis. [96] (10.1197/j.jht.2006.02.005)
• [L4] [98] (10.1093/occmed/kqn123)
• [L1] [99] (10.1177/1753193412445162)
• [L1] [100] (10.1016/j.apmr.2017.08.489)
• [L5] [101] (10.1016/s0363-5023(05)80209-6)
• [L1] [102] (10.1007/s11999-010-1637-5)
• [L1] The procedures provided similar symptom relief and hand strength and sensibility recovery, and were safe for patients with carpal tunnel syndrome. [104] (10.1002/brb3.439)
• [L5] Effective management of recalcitrant carpal tunnel syndrome requires an accurate diagnosis and a comprehensive treatment strategy, as revision carpal tunnel release is less successful than primary release with up to 40% of patients having unfavorable outcomes. [105] (10.5435/jaaos-d-18-00004)
• [L2] UGCTR and ECTR are safe and effective treatments for carpal tunnel syndrome. [106] (10.1016/j.jhsg.2026.100974)
• [L2] Patients with carpal tunnel syndrome receiving chronic narcotic pain medication for nonhand pain benefited from endoscopic carpal tunnel release, experiencing a longer recovery period but ultimately achieving the same outcomes as patients without chronic pain. [107] (10.1016/j.jhsa.2012.05.017)
• [L1] Surgical treatment of carpal tunnel syndrome relieves symptoms significantly better than splinting. [108] (10.1002/14651858.cd001552)
• [L4] Symptoms in the non-dominant hand resolved faster after carpal tunnel release in patients with severe carpal tunnel syndrome. [111] (10.1142/s0218810417500344)
• [L1] Both surgical and conservative interventions had treatment benefit in carpal tunnel syndrome. [112] (10.1186/1749-799x-6-17)
• [L1] In people with carpal tunnel syndrome, steroid injection combined with splinting resulted in modestly greater reduction of symptoms, functional recovery, and improvement of nerve function at 12-week follow-up compared to steroid injection alone. [113] (10.1016/j.apmr.2017.01.018)
• [L4] Local steroid injection for carpal tunnel syndrome has an overall success rate of 45% after a mean follow-up of 16 months. [115] (10.1016/j.jhsa.2021.09.022)
• [L1] The randomized study failed to show benefit in a 2-week course of hand therapy after carpal tunnel release using a short incision. [116] (10.1016/j.jhsa.2007.05.001)
• [L4] This method has demonstrated itself to be efficient and safe in the treatment of carpal tunnel syndrome, with symptoms and signals relieved in more than 95% of patients. [117] (10.1007/s11552-013-9566-x)
• [L1] The study demonstrates that PRP is a safe modality that effectively relieves pain and improves disability in patients with carpal tunnel syndrome. [118] (10.1038/s41598-017-00224-6)
• [L4] One cannot rely entirely on the existing anatomical classifications of the MN in the carpal tunnel. [119] (10.1016/j.injury.2020.03.024)
• [L4] Patients who have problematic class II CTS or failed carpal tunnel median neuropathy class III are likely to do poorly with a simple surgical release. [121] (10.1016/s0894-1130(12)80296-1)
• [L3] The short-term complication and secondary surgery rates of mini-open carpal tunnel release are low. [123] (10.1177/1558944718765226)
• [Paper] MRI is not routinely used for investigation of nerve entrapment syndromes of the upper extremity, but its unique contrast resolution makes it appropriate for specific situations. [125] (10.1016/j.main.2004.10.008)
• [L5] Magnetic resonance imaging is a useful preoperative method to identify the cause and location of nerve compression at the wrist when the symptoms and physical findings are inconclusive. [127] (10.1016/0363-5023(89)90182-2)
• [L5] The case highlights that carpal tunnel syndrome can occur in all age groups and that ultrasound and MRI are essential for assessing the invasive character of tumors. [129] (10.1016/s1297-3203(02)00007-0)
• [L5] The hydrostatic pressure effect associated with carpal tunnel syndrome does not appear to influence median nerve kinetics or kinematics for the wrist positions studied. [130] (10.1016/s0363-5023(97)80118-9)
• [L2] Patients with a prior history of carpal tunnel syndrome are at increased risk of recurrent symptoms after radial artery cannulation. [132] (10.1016/0363-5023(93)90091-g)
• [L1] Among patients with carpal tunnel syndrome, extended follow-up 11 to 16 years after surgery showed no significant differences in symptom severity or functional status scores between open and endoscopic release groups. [133] (10.1001/jama.2015.12208)
• [L2] Patient-reported symptoms and function improved significantly up to 12 weeks after open carpal tunnel release. [134] (10.1016/j.jht.2016.03.007)
• [L4] Among the large group of carpal tunnel syndromes, it is possible to distinguish two distinct entities, which are related to a persistent median artery. [135] (10.1016/s0363-5023(85)80163-5)
• [L4] At an average follow-up of 4.5 years, 28% of hands had persistent symptoms, but results were scarcely different from the conventional technique with no patient requiring reoperation. [140] (10.1054/jhsb.1999.0226)
• [L4] Wrist deviation from neutral can lead to more pronounced deformation of the median nerve than finger flexion for both intensive and nonintensive users. [141] (10.1016/j.jhsa.2018.08.006)
• [L3] Routine out-patient follow-up may not be necessary for carpal tunnel decompression, as a telephone clinic can be safely implemented in a manner that is acceptable to patients and with the ability to identify potential complications at an early stage. [142] (10.1177/1753193408090124)
• [L3] Patients remaining on a prescription after carpal tunnel release reported worse outcomes compared to those who discontinued. [143] (10.1177/15589447211064365)
• [L3] The largest median nerve excursion in the arm and wrist occurred when wrist extension is the terminal movement. [144] (10.1177/1758998315617784)
• [L4] Sensory, functional, and symptomatic recovery from the third month to the sixth month following surgery affected sleep parameters and improved the sleep quality of patients with carpal tunnel syndrome. [146] (10.1177/1753193418808182)
• [L4] The morphological study showed a dorsal displacement of the median nerve during flexion of the wrist in 84.5% of the patients. [152] (10.1016/0266-7681(87)90061-1)
• [Paper] Imaging can be used to help evaluate any other lesions of concern and can also simultaneously add support for the diagnosis of CTS by demonstrating changes in the CSA of the median nerve at the level of the inlet. [154] (10.2106/jbjs.25.01685)
• [L4] The duration of compression of the median nerve at the carpal canal is significantly related to the effectiveness of conservative management. [156] (10.1016/s0894-1130(04)00194-2)
• [L4] Availability of a Portuguese version of the Six-Item Carpal Tunnel Syndrome Symptoms Scale and Palmar Pain Scale (CTS-6) questionnaire will allow an objective evaluation of the treatment of a syndrome that is very prominent in medical practice. [157] (10.1177/1558944715627271)
• [L5] There is sufficient evidence for orthopaedic and hand surgeons to seriously consider using ultrasound as the first-line confirmatory diagnostic tool for carpal tunnel syndrome. [158] (10.2106/jbjs.o.01067)
• [L5] EDS is recommended by multidisciplinary groups for carpal tunnel syndrome diagnosis, though this remains controversial, and should not be used to diagnose radiculopathy. [160] (10.1016/j.hcl.2013.04.005)
• [L3] [161] (10.1016/s0894-1130(98)80035-5)
• [L4] [162] (10.1007/s11552-010-9263-y)
• [L5] The paper argues that evidence available to purchasers and clinicians attempting to manage demand for carpal tunnel decompression is usually sparse and rarely comprehensive, and that universally applied and validated measures for hand surgery outcomes are rarely available. [163] (10.1054/jhsb.1999.0328)
• [L4] Of the methods tested, wrist flexion and vibration perception demonstrated the best overall agreement and accuracy. [165] (10.3233/wor-1997-8105)
• [L5] They recommend high-resolution magnetic resonance imaging to evaluate complex cases of nerve entrapment. [166] (10.1007/s11552-014-9652-8)
• [L4] The outcome of carpal tunnel decompression syndrome is good in the majority of the cases, with open and endoscopic techniques providing similar results. [167] (10.1054/jhsb.2002.0780)
• [L4] With wrist extension the cross-sectional area decreased at the pisiform level only and with wrist flexion, it decreased at both levels. [168] (10.1016/0266-7681(93)90018-b)
• [L4] Clinical symptoms of carpal tunnel syndrome improved in all 55 hands, and postoperative electrophysiologic data remained within normal range in patients who agreed to receive electrophysiologic examinations. [169] (10.1016/s0363-5023(05)80442-3)
• [L4] Ulnar tunnel syndrome is of two distinct types: Type 1 involves compression at the level of the pisiform with sensory and motor involvement, and Type 2 involves compression distal to the pisiform with motor involvement only. [170] (10.1016/0266-7681(84)90021-4)
• [L5] [171] (10.1016/j.jhsa.2009.01.010)
• [L2] The outcome of carpal tunnel release in terms of improvement in the symptom and functional scores is sufficient to justify surgery in the elderly, but surgical outcomes are less predictable than in younger patients. [172] (10.1016/j.jhsb.2005.07.005)
• [L4] Transverse movement of the median nerve is most marked with forearm supination, irrespective of other changes in the kinetic chain. [173] (10.1258/ht.2011.011017)
• [L3] Surgery should be considered as the initial form of treatment when patients are diagnosed with carpal tunnel syndrome confirmed by nerve conduction studies, as this provides symptom resolution with a favorable cost analysis. [174] (10.1016/j.jhsa.2009.04.034)
• [L3] A management model based on a questionnaire score for symptoms and signs was developed to select patients with a high probability of CTS for carpal tunnel release without nerve conduction studies. [175] (10.1177/1753193409105566)
• [L2] Patients should not be denied carpal tunnel surgery because of age, but, rather, should be encouraged to proceed with the surgery, with the likelihood that they will experience the same rate of improvement as younger individuals. [176] (10.1016/j.jhsb.2006.03.165)
• [L4] A review of 186 operative cases of carpal tunnel syndrome disclosed a total of 34 complications in 22 patients, with an incidence of 12%. [182] (10.1016/s0363-5023(78)80118-x)
• [L5] Progressive distraction across the wrist causes a decrease in total carpal canal volume. [184] (10.1177/1753193408092037)
• [L2] MRI of patients 3 months after successful endoscopic carpal tunnel release does not demonstrate a discrete gap or separation in the flexor retinaculum overlying the median nerve but may be useful for evaluating median nerve morphology. [187] (10.1016/j.jhsa.2012.11.013)
• [L3] Alterations in the morphology of the carpal tunnel in patients with carpal tunnel syndrome can be measured in the district general hospital setting. [188] (10.1054/jhsb.2002.0869)
• [L3] High resolution ultrasound is a valid and accurate diagnostic modality in carpal tunnel syndrome and correlated to CTS severity. [190] (10.1186/s12891-019-3010-5)
• [Letter] [191] (10.1016/j.jhsa.2021.10.015)
• [L1] Therefore it is a reliable modality for imaging the wrist in patients with CTS. [197] (10.1016/j.jhsa.2006.01.020)
• [L5] [201] (10.1016/s0749-0712(21)00307-3)
• [L5] The ulnar nerve requires over 2 cm of unimpeded movement both at the elbow and wrist to perform full motions of the upper extremity involving the shoulder, elbow, wrist, and fingers. [203] (10.1053/jhsu.2001.26140)
• [L4] The authors suggest considering an infectious etiology in atypical carpal tunnel syndrome presentations or when symptoms persist after surgery. [204] (10.1016/j.jhsa.2017.05.027)
• [L5] Space occupying lesions of the carpal tunnel may be easily missed, and a carpal tunnel view and ultrasound scanning in suspected cases is mandatory. [205] (10.1007/s12593-012-0076-9)
• [L5] The application of external forces on the palm of cadaver hands increases carpal tunnel pressure and the magnitude of the pressure change in the carpal tunnel depends on the location of the applied force. [206] (10.1016/s0363-5023(05)80004-8)
• [L4] A significant rise in carpal tunnel pressure was recorded with wrist flexion, wrist extension, making a fist, holding objects, and isolated isometric flexion of a finger against resistance. [207] (10.1016/s0363-5023(05)80443-5)
• [L4] With clinical evaluation as the reference standard, electrodiagnostic, ultrasound, and MRI are not helpful in making a diagnosis of pronator syndrome concurrent with carpal tunnel syndrome. [208] (10.1016/j.jhsa.2020.06.006)
• [L5] The hydrostatic pressure was found to be affected by both wrist posture and tendon load, with highest pressures seen in wrist extension with no load. [209] (10.1016/s0363-5023(97)80119-0)
• [L4] Carpal tunnel syndrome impairs the ability to perform precision pinch across the movement and at digit-contact. [210] (10.1002/jor.22600)
• [L5] MRI three-dimensional reconstruction, a valid and reproducible technique for measuring carpal tunnel volume and dimensions, has considerable research potential for the evaluation of the relationship between the carpal canal and its contents before and after carpal tunnel release. [212] (10.1016/s0363-5023(87)80054-0)
• [L5] Diagnosis of compressive neuropathies relies on a combination of clinical presentation, physical examination findings, and use of imaging modalities and electrodiagnostic studies, as there is no true diagnostic gold standard for most conditions. [213] (10.1016/j.jhsg.2022.10.010)
• [L4] [214] (10.1227/01.neu.0000335784.90217.9d)
• [L5] When carpal tunnel syndrome is suspected an ultrasound examination can confirm the diagnosis and uncover the underlying etiology, but nerve conduction studies may still be required. [216] (10.1177/0883073810387299)
• [L4] The study demonstrates the value of routine sonographic assessment when evaluating patients with carpal tunnel syndrome. [217] (10.1016/j.jhsg.2025.100903)
• [L4] [218] (10.1007/s00776-010-1496-7)
• [L4] Although wrist radiography is appropriate for some specific patient subgroups when suggested by history or findings on physical examination, its use as a routine screening procedure in most patients with CTS seems unjustified. [220] (10.1016/s0363-5023(05)80190-x)
• [L4] This finding supports the use of ultrasound in the diagnosis of carpal tunnel syndrome by confirming that CSA at the median nerve should not be elevated due to cervical radiculopathy. [221] (10.1016/j.jhsg.2020.03.007)
• [L4] In cases with swelling or tenderness on the area of wrist flexion creases, it is important to obtain a carpal tunnel view, and MRI and/or CT should be supplemented in order to rule out SOLs around the carpal tunnel, if necessary. [224] (10.3349/ymj.2009.50.2.257)
• [L4] Wrist ratio was the only significant predictor in the logistic regression analysis. [225] (10.1002/ca.23198)
• [L5] The scapholunate interosseous ligament is a richly innervated ligament that contributes to carpal proprioception, a fundamental element of dynamic wrist stability. [226] (10.1016/j.jhsa.2009.05.007)
• [L3] MRI-based measurements of median nerve CSA, particularly at the inlet level, suggest that relying solely on CSA measurements may not be an optimal diagnostic strategy for CTS in patients with equivocal clinical symptoms. [227] (10.2106/jbjs.25.00787)
• [L4] Flexion of the wrist and/or fingers produces a palmar rearrangement of the flexor tendons creating potential compression of the median nerve. [229] (10.1016/0363-5023(90)90019-n)
• [L4] The present study demonstrates a real diagnostic and prognostic value of the wrist flexion test described by Phalen and Kendrick in 1957. [230] (10.1016/0266-7681_88_90160-x)
• [L4] This study confirms that patients suffering from idiopathic CTS have high canal pressures, especially at the extremes of wrist positions, with pressures maximal with maximal wrist extension. [234] (10.1053/jhsu.2002.36541)
• [L1] Occupational biomechanical factors play a substantial role in the causation of CTS. [236] (10.1186/s12891-015-0685-0)
• [L3] [246] (10.2106/jbjs.o.00476)
• [L4] [248] (10.1177/1558944717725379)
• [L1] [252] (10.1016/j.jhsa.2006.03.005)
• [L4] Patients with mild or moderate carpal tunnel syndrome experience a faster time to resolution of daytime numbness and tingling when compared with patients with severe carpal tunnel syndrome. [253] (10.1177/1753193415576248)
• [L4] [254] (10.1016/0363-5023(91)90208-s)
• [L4] The carpal canal pressure was related to the latency and to the duration of symptoms. [259] (10.1016/j.jhsa.2006.03.004)
• [L2] Clinical severity of carpal tunnel syndrome at intake is the most important factor in estimating symptom relief after surgical treatment. [260] (10.1016/j.jhsa.2018.05.017)
• [L5] The interpretation of a single aspect of a single nerve conduction study (one sensory latency) has little value in assessing the prognosis of a neuropathy such as the carpal tunnel syndrome. [262] (10.1016/s0363-5023(96)80378-9)
• [L4] A significant correlation was found between patients with an incomplete release and lack of a symptom-free period after carpal tunnel release. [265] (10.1016/s0749-0712(21)00315-2)
• [L3] Recurrent CTS presents following a long symptomfree period after primary CTD, and hand function regresses to a similar level of disability. [266] (10.1016/j.hansur.2019.10.049)

See Also

• Carpal Tunnel Release
• Distal Radius Fracture

References

[1] Campbell S Operative Orthopaedics 4 Volume Set. COMPRESSIVE NEUROPATHIES OF THE HAND, FOREARM, AND ELBOW > REFERENCES > CARPAL TUNNEL SYNDROME.

[2] The history of carpal tunnnel syndrome. The Journal of Hand Surgery: Journal of the British Society for Surgery of the Hand. 1988. DOI: 10.1016/0266-7681(88)90046-0

[4] What’s new in carpal tunnel syndrome? Commentary and personal opinions. Journal of Hand Surgery (European Volume). 2022. DOI: 10.1177/17531934221080631

[6] Outcomes of Mini-Open Carpal Tunnel Release in Patients With Unrecordable Preoperative Nerve Conduction Potentials at a Minimum of 5 Years. HAND. 2019. DOI: 10.1177/1558944719857815

[8] AAOS Appropriate Use Criteria: Management of Carpal Tunnel Syndrome. Journal of the American Academy of Orthopaedic Surgeons. 2018. DOI: 10.5435/jaaos-d-17-00454

[9] Encloscopic Carpal Tunnel Release—Current Status. Journal of Hand Therapy. 1993. DOI: 10.1016/s0894-1130(12)80295-x

[10] Relation of preoperative nerve-conduction values to outcome in workers with surgically treated carpal tunnel syndrome. The Journal of Hand Surgery. 1998. DOI: 10.1016/s0363-5023(98)80143-3

[11] Campbell S Operative Orthopaedics 4 Volume Set. COMPRESSIVE NEUROPATHIES OF THE HAND, FOREARM, AND ELBOW > CARPAL TUNNEL SYNDROME > BOX 77.1.

[12] Orthopaedic Knowledge Update 13 Ebook Without Multimedia. Neuropathies, Vascular Conditions: Buerger’s, Raynaud’s; Degenerative Conditions > Upper Extremity Neuropathies > Carpal Tunnel Syndrome.

[15] A 6-year outcome of patients who cancelled carpal tunnel surgery. Journal of Hand Surgery (European Volume). 2011. DOI: 10.1177/1753193411410155

[16] Editorial. The simplicity and complexity of carpal tunnel syndrome. Journal of Hand Surgery (European Volume). 2026. DOI: 10.1177/17531934261433793

[17] Carpal Tunnel Syndrome: The Correlation between Outcome, Symptoms and Nerve Conduction Study Findings. Journal of Hand Surgery. 2001. DOI: 10.1054/jhsb.2001.0616

[18] Diagnosing carpal tunnel syndrome—clinical criteria and ancillary tests. Nature Clinical Practice Neurology. 2006. DOI: 10.1038/ncpneuro0216

[19] Carpal Tunnel Syndrome. Encyclopedia of the Neurological Sciences. 2014. DOI: 10.1016/b978-0-12-385157-4.00652-7

[20] Management of Carpal Tunnel Syndrome. Journal of the American Academy of Orthopaedic Surgeons. 2018. DOI: 10.5435/jaaos-d-17-00451

[22] Practice parameter: Electrodiagnostic studies in carpal tunnel syndrome [RETIRED]. Neurology. 2002. DOI: 10.1212/wnl.58.11.1589

[23] Carpal Tunnel Syndrome in Children and Adolescents with no History of Trauma. Journal of Hand Surgery. 1996. DOI: 10.1016/s0266-7681(96)80023-4

[24] The long-term follow-up of treatment with corticosteroid injections in patients with carpal tunnel syndrome. When are multiple injections indicated?. Journal of Hand Surgery (European Volume). 2012. DOI: 10.1177/1753193412469580

[25] Perineural Tumour Spread: an Unusual Cause of Carpal Tunnel Syndrome. Journal of Hand Surgery. 1990. DOI: 10.1016/0266-7681_90_90060-h

[26] COMPLICATIONS OF NONOPERATIVE AND OPERATIVE TREATMENT OF CARPAL TUNNEL SYNDROME. Hand Clinics. 1996. DOI: 10.1016/s0749-0712(21)00316-4

[27] Carpal Tunnel Syndrome Surgery: What You Should Know. Plastic and Reconstructive Surgery - Global Open. 2020. DOI: 10.1097/gox.0000000000002692

[28] Trapeziometacarpal Joint Osteoarthritis and Carpal Tunnel Syndrome: A New Surgical Approach for Concomitant Treatment. Journal of Hand Surgery. 2003. DOI: 10.1016/s0266-7681(02)00363-7

[29] Correlation of Clinical Signs with Nerve Conduction Tests in the Diagnosis of Carpal Tunnel Syndrome. Journal of Hand Surgery. 1994. DOI: 10.1016/0266-7681(94)90244-5

[32] Diagnosing Carpal Tunnel Syndrome. The Journal of Hand Surgery. 2014. DOI: 10.1016/j.jhsa.2014.03.039

[35] Variation in Interpretation of Provocative Tests for Carpal Tunnel Syndrome. The Journal of Hand Surgery. 2025. DOI: 10.1016/j.jhsa.2024.07.004

[36] Tinel's sign in the diagnosis of carpal tunnel syndrome. The Journal of Hand Surgery: Journal of the British Society for Surgery of the Hand. 1987. DOI: 10.1016/0266-7681(87)90190-2

[38] Diagnosis of Carpal Tunnel Syndrome. The Journal of Hand Surgery. 2010. DOI: 10.1016/j.jhsa.2009.12.034

[39] Elongated muscle belly of the flexor digitorum superficial causing carpal tunnel syndrome. HAND. 2012. DOI: 10.1007/s11552-012-9435-z

[40] Fibrome de la gaine tendineuse occasionnant un « poignet à ressaut » et un syndrome du canal carpien. Chirurgie de la Main. 2006. DOI: 10.1016/j.main.2006.03.001

[41] Carpal tunnel syndrome: Surgical and nonsurgical treatment. The Journal of Hand Surgery. 1993. DOI: 10.1016/0363-5023(93)90329-2

[42] Electrodiagnostic reports of median neuropathy at the wrist. The Journal of Hand Surgery. 1998. DOI: 10.1016/s0363-5023(98)80089-0

[43] Carpal Tunnel Syndrome: Hand Surgeons, Hand Therapists, and Physical Medicine and Rehabilitation Physicians Agree on a Multidisciplinary Treatment Guideline—Results From the European HANDGUIDE Study. Archives of Physical Medicine and Rehabilitation. 2014. DOI: 10.1016/j.apmr.2014.06.022

[45] Outcome Metrics in the Treatment of Carpal Tunnel Syndrome: A Systematic Review. HAND. 2020. DOI: 10.1177/1558944720949951

[46] In Justification of Nonsurgical Treatment for Carpal Tunnel Syndrome. The Journal of Hand Surgery. 2009. DOI: 10.1016/j.jhsa.2009.05.009

[48] Long-term outcome of carpal tunnel release surgery in patients with severe carpal tunnel syndrome. The Bone & Joint Journal. 2017. DOI: 10.1302/0301-620x.99b10.bjj-2016-0587.r2

[49] Incidence, Timing, and Predictors of Staged Contralateral Carpal Tunnel Release at Minimum Ten-Year Follow-Up from Unilateral Surgery. The Journal of Hand Surgery. 2026. DOI: 10.1016/j.jhsa.2026.05.012

[50] Incidence of Carpal Tunnel Syndrome After the Diagnosis of Ulnar Neuropathy. Journal of Hand Surgery Global Online. 2026. DOI: 10.1016/j.jhsg.2026.100970

[51] Current Status of Outcomes Research in Carpal Tunnel Surgery. HAND. 2006. DOI: 10.1007/s11552-006-0002-3

[52] Outcomes of endoscopic surgery compared with open surgery for carpal tunnel syndrome among employed patients: randomised controlled trial. BMJ. 2006. DOI: 10.1136/bmj.38863.632789.1f

[53] Carpal Tunnel Release in Patients With Diabetes: A 5-Year Follow-Up With Matched Controls. The Journal of Hand Surgery. 2014. DOI: 10.1016/j.jhsa.2014.01.012

[55] Ultrasound and MRI in Carpal Tunnel Syndrome: The Dilemma of Simplifying the Approach to a Complex Disease or Making Complex Assessments of a Simple Problem. The Journal of Hand Surgery. 2012. DOI: 10.1016/j.jhsa.2012.07.041

[56] Récidive de tunnel carpien – prise en charge par lambeau synovial. Hand Surgery and Rehabilitation. 2017. DOI: 10.1016/j.hansur.2017.10.066

[57] Effects of Metabolic Syndrome on the Outcome of Carpal Tunnel Release: A Matched Case-Control Study. The Journal of Hand Surgery. 2015. DOI: 10.1016/j.jhsa.2015.04.003

[58] Direct and indirect utilities of patients with mild to moderate versus severe carpal tunnel syndrome. Journal of Hand Surgery (European Volume). 2020. DOI: 10.1177/1753193420922791

[59] Campbell S Operative Orthopaedics 4 Volume Set. COMPRESSIVE NEUROPATHIES OF THE HAND, FOREARM, AND ELBOW > EXTENDED OPEN CARPAL TUNNEL RELEASE.

[61] Grading severity of carpal tunnel syndrome in electrodiagnostic reports: Why grading is recommended. Muscle & Nerve. 2013. DOI: 10.1002/mus.23824

[62] Stress carpal tunnel pressures in patients with carpal tunnel syndrome and normal patients. The Journal of Hand Surgery. 1989. DOI: 10.1016/0363-5023(89)90178-0

[63] Minimally Invasive Ultrasound-Guided Carpal Tunnel Release Improves Long-Term Clinical Outcomes in Carpal Tunnel Syndrome. American Journal of Roentgenology. 2021. DOI: 10.2214/ajr.20.24383

[64] Decompression for recurrent carpal tunnel syndrome provides significant functional improvement and patient satisfaction. Journal of Hand Surgery (European Volume). 2019. DOI: 10.1177/1753193419875945

[65] Carpal tunnel decompression in patients with normal nerve conduction studies. Journal of Hand Surgery (European Volume). 2019. DOI: 10.1177/1753193419866646

[67] Ultrasonographic assessment of longitudinal median nerve and hand flexor tendon dynamics in carpal tunnel syndrome. Muscle & Nerve. 2012. DOI: 10.1002/mus.23246

[68] Longitudinal excursion and strain in the median nerve during novel nerve gliding exercises for carpal tunnel syndrome. Journal of Orthopaedic Research. 2007. DOI: 10.1002/jor.20310

[73] Campbell S Operative Orthopaedics 4 Volume Set. COMPRESSIVE NEUROPATHIES OF THE HAND, FOREARM, AND ELBOW > UNRELIEVED OR RECURRENT CARPAL TUNNEL SYNDROME.

[74] Green S Operative Hand Surgery. Median Nerve Compression at the Elbow and Forearm > Expected Outcome After Carpal Tunnel Decompression.

[78] Correspondence between clinical presentation and electrophysiological testing for potential carpal tunnel syndrome. Journal of Hand Surgery (European Volume). 2012. DOI: 10.1177/1753193412461860

[79] Incidence of Clinically Diagnosed and Surgically Treated Carpal Tunnel Syndrome in Korea. The Journal of Hand Surgery. 2010. DOI: 10.1016/j.jhsa.2010.05.020

[80] Incidence and operations of median, ulnar and radial entrapment neuropathies in Finland: a nationwide register study. Journal of Hand Surgery (European Volume). 2019. DOI: 10.1177/1753193419886741

[81] Sensitivity of the Various Tests for the Diagnosis of Carpal Tunnel Syndrome. Journal of Hand Surgery. 1994. DOI: 10.1016/0266-7681(94)90245-3

[82] Carpal tunnel syndrome as the initial manifestation of scleroderma. The Journal of Hand Surgery. 1988. DOI: 10.1016/s0363-5023(88)80009-1

[83] Carpal Tunnel Syndrome: A Potential Early, Red-Flag Sign of Amyloidosis. The Journal of Hand Surgery. 2025. DOI: 10.1016/j.jhsa.2025.07.017

[85] Nonoperative carpal tunnel syndrome treatment. Hand Clinics. 2002. DOI: 10.1016/s0749-0712(02)00023-9

[87] CORR Insights®: Diagnosis of Mild-to-moderate Idiopathic Median Neuropathy at the Carpal Tunnel Based on Signs and Symptoms is Discordant From Diagnosis Based on Electrodiagnostic Studies and Ultrasound. Clinical Orthopaedics & Related Research. 2023. DOI: 10.1097/corr.0000000000002822

[88] Acute Median Nerve Problems in the Setting of a Distal Radius Fracture. The Journal of Hand Surgery. 2015. DOI: 10.1016/j.jhsa.2015.04.005

[89] Carpal tunnel syndrome caused by an interosseous ganglion of the lunate. Journal of Hand Surgery (European Volume). 2024. DOI: 10.1177/17531934241227809

[90] PRONATOR SYNDROME. Clinics in Sports Medicine. 2001. DOI: 10.1016/s0278-5919(05)70267-2

[91] Carpal tunnel syndrome. BMJ. 2007. DOI: 10.1136/bmj.39282.623553.ad

[92] How to Differentiate Pronator Syndrome from Carpal Tunnel Syndrome: A Comprehensive Clinical Comparison. Diagnostics. 2022. DOI: 10.3390/diagnostics12102433

[93] Carpal Tunnel Syndrome and Distal Radius Fractures. Hand Clinics. 2018. DOI: 10.1016/j.hcl.2017.09.003

[94] The Value of Diagnostic Testing in Carpal Tunnel Syndrome. The Journal of Hand Surgery. 1999. DOI: 10.1053/jhsu.1999.0704

[95] 10.1177-15589447251411545. n.d..

[96] Radial Tunnel Syndrome: A Surgeon's Perspective. Journal of Hand Therapy. 2006. DOI: 10.1197/j.jht.2006.02.005

[98] Evaluation of a symptom diagram for identifying carpal tunnel syndrome. Occupational Medicine. 2008. DOI: 10.1093/occmed/kqn123

[99] The results of carpal tunnel release for carpal tunnel syndrome diagnosed on clinical grounds, with or without electrophysiological investigations: a randomized study. Journal of Hand Surgery (European Volume). 2012. DOI: 10.1177/1753193412445162

[100] Accuracy of Ultrasonography for the Diagnosis of Carpal Tunnel Syndrome: A Systematic Review and Meta-Analysis. Archives of Physical Medicine and Rehabilitation. 2018. DOI: 10.1016/j.apmr.2017.08.489

[101] Electrodiagnostic testing and carpal tunnel release outcome. The Journal of Hand Surgery. 1997. DOI: 10.1016/s0363-5023(05)80209-6

[102] The Sensitivity and Specificity of Ultrasound for the Diagnosis of Carpal Tunnel Syndrome: A Meta-analysis. Clinical Orthopaedics & Related Research. 2011. DOI: 10.1007/s11999-010-1637-5

[104] Intraindividual comparison between open and endoscopic release in bilateral carpal tunnel syndrome: a meta‐analysis of randomized controlled trials. Brain and Behavior. 2016. DOI: 10.1002/brb3.439

[105] Management of Recalcitrant Carpal Tunnel Syndrome. Journal of the American Academy of Orthopaedic Surgeons. 2019. DOI: 10.5435/jaaos-d-18-00004

[106] Prospective Multicenter Propensity Score-matched Comparison of Ultrasound-guided Versus Endoscopic Carpal Tunnel Release. Journal of Hand Surgery Global Online. 2026. DOI: 10.1016/j.jhsg.2026.100974

[107] Outcome of Endoscopic Carpal Tunnel Release in Patients With Chronic Nonhand Pain Compared With Those Without Chronic Pain. The Journal of Hand Surgery. 2012. DOI: 10.1016/j.jhsa.2012.05.017

[108] Surgical versus non-surgical treatment for carpal tunnel syndrome. Cochrane Database of Systematic Reviews. 2003. DOI: 10.1002/14651858.cd001552

[111] The Effect of Hand Dominance on Patient-Reported Outcomes of Carpal Tunnel Release in Patients with Bilateral Carpal Tunnel Syndrome. The Journal of Hand Surgery (Asian-Pacific Volume). 2017. DOI: 10.1142/s0218810417500344

[112] Is surgical intervention more effective than non-surgical treatment for carpal tunnel syndrome? a systematic review. Journal of Orthopaedic Surgery and Research. 2011. DOI: 10.1186/1749-799x-6-17

[113] Efficacy of Combined Ultrasound-Guided Steroid Injection and Splinting in Patients With Carpal Tunnel Syndrome. Archives of Physical Medicine and Rehabilitation. 2017. DOI: 10.1016/j.apmr.2017.01.018

[115] Cross-Sectional Area of the Median Nerve as a Prognostic Indicator in Carpal Tunnel Syndrome Treated With Local Steroid Injection. The Journal of Hand Surgery. 2023. DOI: 10.1016/j.jhsa.2021.09.022

[116] Outcomes of Carpal Tunnel Surgery With and Without Supervised Postoperative Therapy. The Journal of Hand Surgery. 2007. DOI: 10.1016/j.jhsa.2007.05.001

[117] Carpal Tunnel Release Using the Paine Retinaculotome Inserted through a Palmar Incision. HAND. 2013. DOI: 10.1007/s11552-013-9566-x

[118] Six-month efficacy of platelet-rich plasma for carpal tunnel syndrome: A prospective randomized, single-blind controlled trial. Scientific Reports. 2017. DOI: 10.1038/s41598-017-00224-6

[119] High Division of the Median Nerve with Unusually High Origin of the 3rd Space Common Digital Nerve. Injury. 2020. DOI: 10.1016/j.injury.2020.03.024

[121] Carpal Tunnel Neuropathy Caused by Injury. Journal of Hand Therapy. 1993. DOI: 10.1016/s0894-1130(12)80296-1

[123] Rates of Complications and Secondary Surgeries of Mini-Open Carpal Tunnel Release. HAND. 2018. DOI: 10.1177/1558944718765226

[125] Intérêt de l’IRM dans les syndromes canalaires du membre supérieur. Chirurgie de la Main. 2004. DOI: 10.1016/j.main.2004.10.008

[127] Diagnosis of ganglion in Guyon's canal by magnetic resonance imaging. The Journal of Hand Surgery. 1989. DOI: 10.1016/0363-5023(89)90182-2

[129] Le chondrome extrasquelettique de la main, une cause rare de canal carpien. Chirurgie de la Main. 2003. DOI: 10.1016/s1297-3203(02)00007-0

[130] Displacement and strain of the median nerve at the wrist. The Journal of Hand Surgery. 1997. DOI: 10.1016/s0363-5023(97)80118-9

[132] Acute exacerbation of carpal tunnel syndrome after radial artery cannulation. The Journal of Hand Surgery. 1993. DOI: 10.1016/0363-5023(93)90091-g

[133] Extended Follow-up of a Randomized Clinical Trial of Open vs Endoscopic Release Surgery for Carpal Tunnel Syndrome. JAMA. 2015. DOI: 10.1001/jama.2015.12208

[134] Patient-reported outcomes after open carpal tunnel release using a standard protocol with 1 hand therapy visit. Journal of Hand Therapy. 2017. DOI: 10.1016/j.jht.2016.03.007

[135] Median artery in carpal tunnel syndrome. The Journal of Hand Surgery. 1985. DOI: 10.1016/s0363-5023(85)80163-5

[140] Carpal Tunnel Release by the Agee Endoscopic Technique. Journal of Hand Surgery. 1999. DOI: 10.1054/jhsb.1999.0226

[141] Morphological Changes of the Median Nerve Within the Carpal Tunnel During Various Finger and Wrist Positions: An Analysis of Intensive and Nonintensive Electronic Device Users. The Journal of Hand Surgery. 2019. DOI: 10.1016/j.jhsa.2018.08.006

[142] Telephone Clinic Follow-Up Following Carpal Tunnel Decompression. Journal of Hand Surgery (European Volume). 2008. DOI: 10.1177/1753193408090124

[143] Prescription Opioids and Patient-Reported Outcomes and Satisfaction After Carpal Tunnel Release Surgery. HAND. 2022. DOI: 10.1177/15589447211064365

[144] Determination of the longitudinal median nerve mobility in different neurodynamic techniques. Hand Therapy. 2015. DOI: 10.1177/1758998315617784

[146] Prospective evaluation of preoperative and postoperative sleep quality in carpal tunnel release. Journal of Hand Surgery (European Volume). 2018. DOI: 10.1177/1753193418808182

[152] Anatomical relations in the carpal tunnel: A computed tomographic study. The Journal of Hand Surgery: Journal of the British Society for Surgery of the Hand. 1987. DOI: 10.1016/0266-7681(87)90061-1

[154] Magnetic Resonance Imaging to Diagnose Carpal Tunnel Syndrome: When Size Does Matter. Journal of Bone and Joint Surgery. 2026. DOI: 10.2106/jbjs.25.01685

[156] The effect of health-seeking behavior on the conservative management of carpal tunnel syndrome: A mixed-design pilot study. Journal of Hand Therapy. 2004. DOI: 10.1016/s0894-1130(04)00194-2

[157] Translation and Cross-Cultural Adaptation of the 6-Item Carpal Tunnel Syndrome Symptoms Scale and Palmar Pain Scale Questionnaire Into Brazilian Portuguese. HAND. 2016. DOI: 10.1177/1558944715627271

[158] An Alternative Solution for the Diagnosis of Carpal Tunnel Syndrome. The Journal of Bone and Joint Surgery-American Volume. 2015. DOI: 10.2106/jbjs.o.01067

[160] Timing and Appropriate Use of Electrodiagnostic Studies. Hand Clinics. 2013. DOI: 10.1016/j.hcl.2013.04.005

[161] Nerve and tendon gliding exercises and the conservative management of carpal tunnel syndrome. Journal of Hand Therapy. 1998. DOI: 10.1016/s0894-1130(98)80035-5

[162] Is there Light at the End of the Tunnel? Controversies in the Diagnosis and Management of Carpal Tunnel Syndrome. HAND. 2010. DOI: 10.1007/s11552-010-9263-y

[163] Carpal Tunnel Syndrome: Reconciling “Demand Management” with Clinical Need. Journal of Hand Surgery. 2000. DOI: 10.1054/jhsb.1999.0328

[165] Inter-rater agreement and accuracy of clinical tests used in diagnosis of Carpal Tunnel Syndrome. Work. 1997. DOI: 10.3233/wor-1997-8105

[166] Subclavius Posticus: An Anomalous Muscle in Association with Suprascapular Nerve Compression in an Athlete. HAND. 2014. DOI: 10.1007/s11552-014-9652-8

[167] Pedicled Fat Flap Coverage of the Median Nerve after Failed Carpal Tunnel Decompression. Journal of Hand Surgery. 2002. DOI: 10.1054/jhsb.2002.0780

[168] Changes in Carpal Tunnel Shape During Wrist Joint Motion. Journal of Hand Surgery. 1993. DOI: 10.1016/0266-7681(93)90018-b

[169] Evaluation of carpal canal pressure in carpal tunnel syndrome. The Journal of Hand Surgery. 1995. DOI: 10.1016/s0363-5023(05)80442-3

[170] Ulnar Tunnel Syndrome. Journal of Hand Surgery. 1984. DOI: 10.1016/0266-7681(84)90021-4

[171] Nonsurgical Treatment of Carpal Tunnel Syndrome. The Journal of Hand Surgery. 2009. DOI: 10.1016/j.jhsa.2009.01.010

[172] The Effect of Age and Gender upon Symptoms and Surgical Outcomes in Carpal Tunnel Syndrome. Journal of Hand Surgery. 2005. DOI: 10.1016/j.jhsb.2005.07.005

[173] Scientific study of the extent of transverse movement of the median nerve at the wrist during active wrist extension in static positions of the upper limb tension test one. Hand Therapy. 2011. DOI: 10.1258/ht.2011.011017

[174] The Cost-Effectiveness of Nonsurgical Versus Surgical Treatment for Carpal Tunnel Syndrome. The Journal of Hand Surgery. 2009. DOI: 10.1016/j.jhsa.2009.04.034

[175] Assessment of a diagnostic questionnaire and protocol for management of carpal tunnel syndrome. Journal of Hand Surgery (European Volume). 2009. DOI: 10.1177/1753193409105566

[176] A Prospective Assessment of Carpal Tunnel Surgery with Respect to Age. Journal of Hand Surgery. 2006. DOI: 10.1016/j.jhsb.2006.03.165

[182] Complications of surgical release for carpal tunnel syndrome. The Journal of Hand Surgery. 1978. DOI: 10.1016/s0363-5023(78)80118-x

[184] Carpal Tunnel Volume Changes of the Wrist Under Distraction. Journal of Hand Surgery (European Volume). 2008. DOI: 10.1177/1753193408092037

[187] Magnetic Resonance Imaging After Endoscopic Carpal Tunnel Release. The Journal of Hand Surgery. 2013. DOI: 10.1016/j.jhsa.2012.11.013

[188] Carpal Tunnel Syndrome – Is High-Frequency Ultrasound a Useful Diagnostic Tool?. Journal of Hand Surgery. 2003. DOI: 10.1054/jhsb.2002.0869

[190] Diagnostic potential of ultrasound in carpal tunnel syndrome with different etiologies: correlation of sonographic median nerve measures with electrodiagnostic severity. BMC Musculoskeletal Disorders. 2019. DOI: 10.1186/s12891-019-3010-5

[191] Letter Regarding “The Epidemiology of Carpal Tunnel Revision Over a 1-Year Follow-Up Period”. The Journal of Hand Surgery. 2022. DOI: 10.1016/j.jhsa.2021.10.015

[197] The Use of Diagnostic Ultrasound in Carpal Tunnel Syndrome. The Journal of Hand Surgery. 2006. DOI: 10.1016/j.jhsa.2006.01.020

[201] THE PATHOPHYSIOLOGY OF CARPAL TUNNEL SYNDROME. Hand Clinics. 1996. DOI: 10.1016/s0749-0712(21)00307-3

[203] Ulnar nerve excursion and strain at the elbow and wrist associated with upper extremity motion. The Journal of Hand Surgery. 2001. DOI: 10.1053/jhsu.2001.26140

[204] Mycobacterium marinum and Carpal Tunnel Syndrome: Three Case Reports. The Journal of Hand Surgery. 2017. DOI: 10.1016/j.jhsa.2017.05.027

[205] Carpal Tunnel Syndrome Due to Hydroxyapatite Crystal Deposition Disease. Journal of Hand and Microsurgery. 2013. DOI: 10.1007/s12593-012-0076-9

[206] Externally applied forces to the palm increase carpal tunnel pressure. The Journal of Hand Surgery. 1995. DOI: 10.1016/s0363-5023(05)80004-8

[207] In vivo measurement of carpal tunnel pressure in the functioning hand. The Journal of Hand Surgery. 1995. DOI: 10.1016/s0363-5023(05)80443-5

[208] Clinical, Radiological, and Electrodiagnostic Diagnosis of Pronator Syndrome Concurrent With Carpal Tunnel Syndrome. The Journal of Hand Surgery. 2020. DOI: 10.1016/j.jhsa.2020.06.006

[209] The effects of tendon load and posture on carpal tunnel pressure. The Journal of Hand Surgery. 1997. DOI: 10.1016/s0363-5023(97)80119-0

[210] Pathokinematics of precision pinch movement associated with carpal tunnel syndrome. Journal of Orthopaedic Research. 2014. DOI: 10.1002/jor.22600

[212] Carpal tunnel volume determination by magnetic resonance imaging three-dimensional reconstruction. The Journal of Hand Surgery. 1987. DOI: 10.1016/s0363-5023(87)80054-0

[213] Diagnostic Considerations in Compressive Neuropathies. Journal of Hand Surgery Global Online. 2023. DOI: 10.1016/j.jhsg.2022.10.010

[214] LONG-TERM FOLLOW-UP OF DUAL-PORTAL ENDOSCOPIC RELEASE OF THE TRANSVERSE LIGAMENT IN CARPAL TUNNEL SYNDROME. Neurosurgery. 2009. DOI: 10.1227/01.neu.0000335784.90217.9d

[216] Carpal Tunnel Syndrome Secondary to Ganglion Cyst in a Child. Journal of Child Neurology. 2011. DOI: 10.1177/0883073810387299

[217] The Reversed Palmaris Longus: Sonographic Findings and Anatomical Correlation With Implications for Carpal Tunnel Syndrome Diagnosis and Management. Journal of Hand Surgery Global Online. 2026. DOI: 10.1016/j.jhsg.2025.100903

[218] Differential onset patterns and causes of carpal tunnel syndrome after distal radius fracture: a retrospective study of 105 wrists. Journal of Orthopaedic Science. 2010. DOI: 10.1007/s00776-010-1496-7

[220] The use of routine wrist radiography in the evaluation of patients with carpal tunnel syndrome. The Journal of Hand Surgery. 1997. DOI: 10.1016/s0363-5023(05)80190-x

[221] Electrodiagnostic Studies and Ultrasound Cross-Sectional Area of the Median Nerve in Patients With Isolated Cervical Radiculopathy. Journal of Hand Surgery Global Online. 2020. DOI: 10.1016/j.jhsg.2020.03.007

[223] Green S Operative Hand Surgery. Median Nerve Compression at the Elbow and Forearm > COMPRESSION OF THE MEDIAN NERVE > Median Nerve Compression at the Wrist: Carpal Tunnel Syndrome.

[224] Carpal Tunnel Syndrome Caused by Space Occupying Lesions. Yonsei Medical Journal. 2009. DOI: 10.3349/ymj.2009.50.2.257

[225] High wrist ratio is a risk factor for carpal tunnel syndrome. Clinical Anatomy. 2018. DOI: 10.1002/ca.23198

[226] Sensory Innervation of the Subregions of the Scapholunate Interosseous Ligament in Relation to Their Structural Composition. The Journal of Hand Surgery. 2009. DOI: 10.1016/j.jhsa.2009.05.007

[227] MRI Assessment of Median Nerve Size in Patients with Proximate Electrodiagnostic Studies. Journal of Bone and Joint Surgery. 2026. DOI: 10.2106/jbjs.25.00787

[229] Carpal tunnel changes and median nerve compression during wrist flexion and extension seen by magnetic resonance imaging. The Journal of Hand Surgery. 1990. DOI: 10.1016/0363-5023(90)90019-n

[230] Phalen’s Test in the Diagnosis of Carpal Tunnel Syndrome. Journal of Hand Surgery. 1988. DOI: 10.1016/0266-7681_88_90160-x

[234] Canal pressures before, during, and after endoscopic release for idiopathic carpal tunnel syndrome. The Journal of Hand Surgery. 2002. DOI: 10.1053/jhsu.2002.36541

[236] Association between work-related biomechanical risk factors and the occurrence of carpal tunnel syndrome: an overview of systematic reviews and a meta-analysis of current research. BMC Musculoskeletal Disorders. 2015. DOI: 10.1186/s12891-015-0685-0

[246] A Comparison of Three Diagnostic Tests for Carpal Tunnel Syndrome Using Latent Class Analysis. The Journal of Bone and Joint Surgery-American Volume. 2015. DOI: 10.2106/jbjs.o.00476

[248] Reliability and Validation of the Greek Version of the Boston Carpal Tunnel Questionnaire. HAND. 2017. DOI: 10.1177/1558944717725379

[250] 10.1177-15589447261422497. n.d..

[251] Green S Operative Hand Surgery. Median Nerve Compression at the Elbow and Forearm > AUTHORS’ PREFERRED METHOD OF TREATMENT: OPEN CARPAL TUNNEL RELEASE.

[252] Development and Validation of Diagnostic Criteria for Carpal Tunnel Syndrome. The Journal of Hand Surgery. 2006. DOI: 10.1016/j.jhsa.2006.03.005

[253] Pre-operative electrodiagnostic testing predicts time to resolution of symptoms after carpal tunnel release. Journal of Hand Surgery (European Volume). 2015. DOI: 10.1177/1753193415576248

[254] Synovial histology in carpal tunnel syndrome. The Journal of Hand Surgery. 1991. DOI: 10.1016/0363-5023(91)90208-s

[259] Segmental Carpal Canal Pressure in Patients With Carpal Tunnel Syndrome. The Journal of Hand Surgery. 2006. DOI: 10.1016/j.jhsa.2006.03.004

[260] Predicting Clinical Outcome After Surgical Treatment in Patients With Carpal Tunnel Syndrome. The Journal of Hand Surgery. 2018. DOI: 10.1016/j.jhsa.2018.05.017

[262] Electric studies as a prognostic factor in the surgical treatment of carpal tunnel surgery. The Journal of Hand Surgery. 1996. DOI: 10.1016/s0363-5023(96)80378-9

[265] REOPERATION FOR CARPAL TUNNEL SYNDROME. Hand Clinics. 1996. DOI: 10.1016/s0749-0712(21)00315-2

[266] Résultats fonctionnels et qualité de vie après révision décompression du canal carpien. Hand Surgery and Rehabilitation. 2019. DOI: 10.1016/j.hansur.2019.10.049