Postoperative Changes in Nerve Conduction Times After Neurolysis of the Distal Median Nerve
The median nerve conduction velocity and particularly the delayed distal latency of the muscular response potential (DML, distal motor latency) constitute — in addition to the clinical symptoms — the electrophysiological confirmation of carpal tunnel syndrome [2, 3, 6]. Since, however, a clinically relevant carpal tunnel syndrome in need of surgical therapy may also be found with normal nerve conduction times, DML is only an additional diagnostic measure secondary to the clinical signs [1, 4]. Furthermore, neurophysiological methods do not permit the differentiation of patients by those suited for conservative treatment and those who must be operated on. It is also not possible to derive any prognostic statements from the preoperative measurements .
KeywordsMedian Nerve Carpal Tunnel Syndrome Distal Latency Surgical Decompression Average Improvement
Unable to display preview. Download preview PDF.
- 1.Goodgold J, Eberstein A (1977) Electrodiagnosis of neuromuscular diseases. Williams & Wilkins, Baltimore, pp 114–118.Google Scholar
- 2.Hopf HC (1974) Elektromyographie. Thieme, Stuttgart, pp 119–127.Google Scholar
- 3.Hudson A, Berry H, Mayfield F (1982) Chronic injuries of peripheral nerves by entrapment. In: Youmans JR (ed) Neurological surgery, vol. 4. Saunders, Philadelphia, London, Toronto, Mexico City, Sydney, Tokyo, pp 2430–2474.Google Scholar
- 4.Leblhuber F, Reisecker F, Witzmann A (1985) Zur Frage elektrodiagnostischer Veränderungen in bezug auf die Schwere morphologischer Veränderungen beim Karpaltunnelsyndrom. In: Hohmann D (ed) Neuroorthopädie III. Springer, Berlin Heidelberg New York Tokyo, pp 332–336.Google Scholar
- 5.Sunderland S (1978) Nerves and nerve injuries. Churchill Livingstone, Edinburgh London New York, pp 718–721.Google Scholar