肘管综合征的神经-肌电图检测

目的：探讨肘管综合征的临床及肌电图诊断方法。方法：为35例临床拟诊肘管综合征患者进行尺神经分段测定运动和感觉传导速度及尺神经支配肌肌电图。结果：35例35条尺神经，肘段减慢33条，未引出2条，其中运动传导速度前臂段减慢18例；感觉传导速度表现为指5－腕感觉神经动作电位波幅消失18例，腕－肘消失19例，感觉神经动作电位波幅比健侧不同程度衰减16例。肌电图表现为第I背侧骨间肌、小指展肌不同程度异常。结论：电生理检查不仅可证实诊断，还能较准确地定位卡压的水平，判断神经受损的严重性。结论：因此分段测定尺神经运动传导速度是诊断肘管综合征的重要方法。

Neuromuscular Electromyography for Patients with Elbow-canal Syndrome

Objective: To explore the clinical and electromyographical diagnosis for patients with elbow canal syndrome. Methods: Segmental conduct speed of motor and sensor function of ulna nerve was measured, together with electromyography of muscles supplied by the ulna nerve, on 35 patients with suspicious diagnosis of elbow canal syndrome. Results: In 35 ulna nerves in 35 cases, slow down of MCV in forearm segment was found in 19 cases, elbow segment in 33 cases. MCV was not induced in 2 cases. Finger elbow SNAP wave amplitude disappeared in 19 cases, wrist elbow SNAP wave amplitude disappeared in 18 cases. In comparison to the healthy side, SNAP was decreased by 50% in 17 cases. Abnormal EMG to varying degree was found on the 3rd dorsal interskeletal muscle and small extension muscles. Conclusion: electrophysiological examination can be used to confirm the diagnosis and detect the site of compression. Therefore, segmental MCV of ulna nerves is an important way in the diagnosis of elbow canal syndrome.