年青人尺神經通過肘關節傳導速度之測定

Motor Nerve Conduction Velocity across Elbow of Ulnar Nerve among Young Chinese

邱瑞泉(Ruey-Chyuan Chiou) ； 劉復康(Fu-Kong Lieu) ； 李世培(Shih-Pei Lee) ； 宋成銘(Shing-Ming Sung)

《中華民國復健醫學會雜誌》 11期 (1983/12) Pp. 47-50

摘要

Because there is no standard data available for normal Chinese in assessing patients with tardy ulnar palsy, we performed this study to establish normal values of motor nerve conduction velocity (NCV) in crossing elbow.
Twenty subjects, age between 20-35 years, were examined with Meditro Model 440 EMG, the room temperature was controlled around 22.0±1℃ by air conditioning.
The results of mean normal motor NCV in different segments of ulnar nerve are as follows: below elbow to wrist is 66.45±6.28 m/sec; above elbow to wrist is 57.72±3.99 m/sec; across elbow is 46.64±5.81 m/sec. The normal range of motor NCV in crossing elbow is 37.0-55.0 m/sec. The wide range of normal value makes the clinical guidance for diagnosis bewildering. In addition, the result of this study reveals no difference of motor NCV, amplitude and latency bilaterally. Tardy ulnar palsy is always unilaterally involved, so it’s better to compare it with bilateral motor NCV, amplitude and latency before settling the diagnosis.

並列摘要

Because there is no standard data available for normal Chinese in assessing patients with tardy ulnar palsy, we performed this study to establish normal values of motor nerve conduction velocity (NCV) in crossing elbow.
Twenty subjects, age between 20-35 years, were examined with Meditro Model 440 EMG, the room temperature was controlled around 22.0±1℃ by air conditioning.
The results of mean normal motor NCV in different segments of ulnar nerve are as follows: below elbow to wrist is 66.45±6.28 m/sec; above elbow to wrist is 57.72±3.99 m/sec; across elbow is 46.64±5.81 m/sec. The normal range of motor NCV in crossing elbow is 37.0-55.0 m/sec. The wide range of normal value makes the clinical guidance for diagnosis bewildering. In addition, the result of this study reveals no difference of motor NCV, amplitude and latency bilaterally. Tardy ulnar palsy is always unilaterally involved, so it’s better to compare it with bilateral motor NCV, amplitude and latency before settling the diagnosis.