Pressure and Nerve Lesion in the Carpal Tunnel
Open Access
- 1 January 1983
- journal article
- research article
- Published by Medical Journals Sweden AB in Acta Orthopaedica
- Vol. 54 (2) , 312-316
- https://doi.org/10.3109/17453678308996576
Abstract
In 16 patients, where the diagnosis carpal tunnel syndrome was electrophysiologi-cally confirmed, the pressure between the median nerve and the carpal ligament was measured peroperatively. At rest the pressure was 18-64 mmHg, mean 31 mmHg. Passive volar and dorsal wrist flexion increased the pressure about three times. Isometric or isotonic maximal contractions of wrist and finger muscles, elicited by tetanic nerve stimulation increased the pressure to three to six times the resting value. These high pressures may be one of the causes of the nerve lesion in the carpal tunnel syndrome.Keywords
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