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  • Title: [Carpal tunnel syndrome].
    Author: Pritsch T, Rosenblatt Y, Carmel A.
    Journal: Harefuah; 2004 Oct; 143(10):743-8, 765, 764. PubMed ID: 15521353.
    Abstract:
    Carpal tunnel syndrome is the most common peripheral nerve compression syndrome. Compression of the median nerve in the carpal tunnel, disrupts the blood-nerve barrier causing edema, inflammation and fibrosis of its surrounding connective tissues. In the next stage of the syndrome there is a disruption of the myelin coverage of the nerve followed by damage to the axons. Most carpal tunnel syndromes are idiopathic. Other causes include intrinsic factors (which cause pressure within the tunnel), extrinsic factors (which cause pressure from outside the tunnel) and overuse/exertional factors. Patients usually report numbness and pain of the palmar aspect of their 1st, 2nd, 3rd and radial half of their 4th finger, night pain and gradual worsening of their symptoms. At a later stage, weakness and atrophy of the thenar muscles appears. The physical examination may show a decrease in sensibility, positive provocative tests and a decrease in thenar strength. The typical finding in the nerve conduction tests is a prolonged latency period. The conservative treatment for carpal tunnel syndrome includes ergonomic modifications, anti inflammatory medications and splintage and less frequently, special exercise and therapeutic ultrasound. The indications for operative treatment are failure of conservative treatment or severe carpal tunnel syndrome. The purpose of the operation is to relieve the pressure in the carpal tunnel by dissecting the transverse ligament. The operation can be done in an open approach, endoscopic approach or limited invasive approach.
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