肘管综合征的微移试验与神经电图定位87例诊断研究

The Reserch of Inching Test and EMG Location for 87 Patients with Cubital Canal Syndrome

目的 研究微移试验与神经电图对肘管综合征的定位诊断价值。方法 对 87例确诊的肘管综合征患者进行尺神经干上间隔 2cm的逐步测试 ,并同时给予常规神经电图的检查。结果 共 87例病人 ,91条尺神经中 77例 (89% ) 78条尺神经 (86 % ) ,跨卡压段一项或几项指标异常 ,全组又分为三组即A组 (轻度 ) 33例 ,B组 (中度 ) 2 3例 ,C组 (重度 ) 31例 ,这三组中都是以波幅降低阳性率最高 ,其次是波形及波宽的突然变化及潜伏期延长 ,传导速度减慢 ,并且三组所有波形波宽出现突然变化和传导速度减慢 ,潜伏期延长的病例 ,均出现波幅衰减超过 30 %。与常规神经电图的阳性率为 6 9% (6 3条 )作比较 ,微移试验阳性率最高 (P <0 .0 1)。结论 微移试验与神经电图互补对肘管综合征有重要的定位诊断价值 ,其中跨卡压段波幅的显著衰减 ,比传导速度的减慢有更高的阳性率。

Objective To study the location diagnostic value of inching test and routine EMG in Cubital Canal Syndrome. Methods 87 patients with Cubital Canal Syndrome were treated with the incling test together with the the routine EMG.Results One or more indexes of inching test were abnormal in 78 nerves(86%); all the 91 patients were divided into group A (slight) with 33 cases, group B (mild) with 23 cases, group C (severe) 31 cases. The highest positive rate was the reducing of amplitude, then was the significant changes of wave form and the extended duration, and the reducing of conduction velocity. The reducing of amplitude were more than 30% in all the three groups. The incling test hase the highest positive rate(P<0.01)compared with the routine EMG(69%).Conclusion The incling test might have an important role in the location diagnosis of Cubital Canal Sydrome. The significant decrease of amptitude migh has higher positive rate compared with that of the conduction velocity.