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The recurrence rate after primary carpal tunnel release is approximately 2%. The success rate of surgery to relieve symptoms depends on the definition of “success” and the metrics applied. For example, with respect to alleviation of symptoms, up to 90% success is reported. Yet with respect to patient satisfaction, approximately 50% is reported.
Carpal tunnel surgery has a clinical success rate of 75-90%. [26] Success is most frequently measured with the Boston Carpal Tunnel Questionnaire, physical examination (sensory function, motor function, pain, electrodiagnostic, trophic function), and patient self-assessments.
Each year, doctors perform 400,000 to 600,000 carpal tunnel release surgeries — one type of surgery used to treat the condition — making this one of the most common upper-extremity procedures.
A meta-analysis supports the conclusion that endoscopic carpal tunnel release is favored over the open carpal tunnel release in terms of a reduction in scar tenderness and increase in grip and pinch strength at a 12-week follow-up [13] [14]
In the human body, the carpal tunnel or carpal canal is a flattened body cavity on the flexor (palmar/volar) side of the wrist, bounded by the carpal bones and flexor retinaculum. It forms the passageway that transmits the median nerve and the tendons of the extrinsic flexor muscles of the hand from the forearm to the hand . [ 1 ]
The development of carpal tunnel syndrome was of particular interest for other idiopathic tardy nerve palsies. Carpal tunnel served as a model for how nerves could be squeezed by narrow anatomic compartments and soon other tunnel syndromes were conceptualized, such as cubital tunnel syndrome, and tarsal tunnel syndrome. [87] [88] [83]