第二蚓状肌-骨间肌潜伏期比较在腕管综合征诊断中的意义。

The significance of second lumbrical-interosseous latency comparison in the diagnosis of carpal tunnel syndrome.

作者信息

Argyriou A A, Karanasios P, Makridou A, Makris N

机构信息

Department of Neurology, Saint Andrew General Hospital of Patras, Patras, Greece.

出版信息

Acta Neurol Scand. 2009 Sep;120(3):198-203. doi: 10.1111/j.1600-0404.2008.01141.x.

DOI:10.1111/j.1600-0404.2008.01141.x

PMID:19154532

Abstract

AIM

To assess the significance of the second lumbrical-interosseous latency (2LI-DML) comparison in the diagnosis of carpal tunnel syndrome (CTS).

PATIENTS AND METHODS

We examined 150 consecutive hands of patients referred with suspected CTS, using the 2LI-DML test and other standard measures of median nerve function. Correlations of the 2LI-DML test with standard tests were computed.

RESULTS

Hundred and four hands were electrophysiologically confirmed to have CTS. The 2LI-DML test was abnormal in 99/104 (95.2%) hands with CTS with a mean value of 1.54 +/- 1.12 ms. Among the other measures, the orthodromic median-ulnar palmar velocity comparison was the most frequently abnormal test (95/104 hands, 91.3%), followed by the double-peak morphology of orthodromic sensory action potential from digit 4 (94/104, 90.4%). The 2LI-DML test significantly correlated, either positively or negatively, with all other standard tests.

CONCLUSION

The 2LI-DML comparison is highly sensitive in diagnosing CTS, even in mild cases in which standard tests fail to detect abnormalities.

摘要

目的

评估第二蚓状肌-骨间肌潜伏期（2LI-DML）比较在腕管综合征（CTS）诊断中的意义。

患者与方法

我们对150例因疑似CTS前来就诊的患者的手部进行了检查，采用2LI-DML试验及其他正中神经功能的标准检测方法。计算了2LI-DML试验与标准检测方法之间的相关性。

结果

104只手经电生理检查确诊为CTS。在104例CTS患者中，99只手（95.2%）的2LI-DML试验结果异常，平均值为1.54±1.12毫秒。在其他检测方法中，正向正中-尺侧掌侧速度比较是最常出现异常的检测方法（95/104只手，91.3%），其次是来自第4指的正向感觉动作电位的双峰形态（94/104只手，90.4%）。2LI-DML试验与所有其他标准检测方法均存在显著的正相关或负相关。