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Journal of the Korean Academy of Rehabilitation Medicine 2002;26(5):539-542.
Short Segment Conduction Study of Median and Ulnar Nerves in the Diagnosis of Carpal Tunnel Syndrome.
Kim, Ki Hyung , Yoon, Dae Won , Lee, Hang Jae , Kim, Joo Hyun , Hwang, Mi Ryoung , Kwon, Hee Kyu
Department of Rehabilitation Medicine, College of Medicine, Korea University, Korea. toodulkim@hanmail.net
수근관 증후군의 진단에서 정중신경과 척골신경의 단분절 신경전도검사
김기형, 윤대원, 이항재, 김주현, 황미령, 권희규
고려대학교 의과대학 재활의학교실

To compare the latency difference of median and ulnar sensory nerves through the wrist-palm short segment in patients with carpal tunnel syndrome (CTS).

Subjects included 68 hands of 36 carpal tunnel syndrome patients and 97 hands of 53 healthy adults with no electrophysiologic evidence of CTS. The median and the ulnar sensory responses were recorded on the third and the fifth digit using bar recording electrode, respectively. Both nerves were stimulated just proximal to the distal wrist crease and 5 cm distal to the proximal stimulation point. The latency differences between the 2 stimulation points were obtained.

The transcarpal short segment conduction times in the control group were 1.0⁑0.1 msec and 0.9⁑0.1 msec for the median and ulnar nerves, respectively. The transcarpal short segment conduction times in the patients with CTS were 1.9⁑0.5 msec and 1.0⁑0.3 msec for the median and ulnar nerves, respectively. The transcarpal short segment conduction time difference between the median and ulnar nerves were 0.13⁑0.12 msec in the control group and 0.88⁑0.50 msec in the CTS group. The difference of transcarpal conduction of two nerves was statistically significant in comparison with the two groups.

Wrist-palm short segment study of median and ulnar sensory nerve may be used adjunctively in diagnosis of mild CTS. (J Korean Acad Rehab Med 2002; 26: 539-542)

Key Words: Carpal tunnel syndrome, Short segment conduction


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