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Journal of the Korean Academy of Rehabilitation Medicine 1985;9(2):7.
A Study of Nerve Conduction in Lateral Cutaneous Nerve of Forearm in Healthy Korean
Yang Gyun Lee, M.D., Young Seul Na, M.D., Kyung Sook Kang, M.D. , Kyung Hoi Ahn, M.D.
Department of Rehabilitation Medicine, Kyung Hee University Medical Center, Seoul, Korea
건강한 한국인의 전완외측피부신경의 전도속도에 관한 연구
이양균, 나영설, 강경숙, 안경회
경희대학교 의과대학 재활의학교실

The sensory nerve studies are particularly helpful in the evaluation of polyneuropathies such as compression syndrome due to vigorous upper extremity exercise, lateral epicondylitis, cervical radiculopathy, brachial plexopathy, median nerve compression, and ruptured biceps muscle or tendon.

Especially, in brachial plexus injuries, sensory nerve conduction studies may be helpful in characterizing a lesion as preganglionic or postganglionic.

To obtain the standard of sensory conductin velocities, distal latencies, and amplitude of the lateral cutaneous nerve of forearm in healthy Korean, the antidromic techniques, developed by Spindler and Felsenthal, were applied to 51 Koreans(28 male and 23 female) with no history or physical finding of neurological diseases.

The subjects ranged in age from 19 to 62 years with a mean age of 34.9.

The results were summarized as follows;

1) A total of 80 lateral cutaneous nerve of forearm was studied and the mean value of conduction velocity was 66.90±4.26 m/sec, that of its distal latency was 1.81±0.13 msec, and that of amplitude was 28.08±11.90 ㎶.

2) There was significant difference in the conduction velocity between male and female(male: 65.52±4.29, female:68.16±3.82, p<0.005).

3) There was significant difference in the distal latency between male and female(male:1.86±.014, female: 1.77±0.10, p<0.005).

4) Statistically not significant were the distal latency, conduction velocity and amplitude with advancing age.

5) There was no significant difference related to the dominance of the extremities.

Key Words: Nerve conduction study, Lateral antebrachial cutaneous nerve, Sensory nerve conduction


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