尺神经在肘部完全脱位：对神经病变有保护作用？
Complete dislocation of the ulnar nerve at the elbow: a protective effect against neuropathy?
作者信息
Leis A Arturo, Smith Benn E, Kosiorek Heidi E, Omejec Gregor, Podnar Simon
机构信息
Center for Neuroscience and Neurological Recovery, Methodist Rehabilitation Center, 1350 E. Woodrow Wilson Drive, Jackson, Mississippi, 39216, USA.
Department of Neurology, Mayo Clinic Arizona, Scottsdale, Arizona, USA.
出版信息
Muscle Nerve. 2017 Aug;56(2):242-246. doi: 10.1002/mus.25483. Epub 2017 Jan 4.
INTRODUCTION
Recurrent complete ulnar nerve dislocation has been perceived as a risk factor for development of ulnar neuropathy at the elbow (UNE). However, the role of dislocation in the pathogenesis of UNE remains uncertain.
METHODS
We studied 133 patients with complete ulnar nerve dislocation to determine whether this condition is a risk factor for UNE. In all, the nerve was palpated as it rolled over the medial epicondyle during elbow flexion.
RESULTS
Of 56 elbows with unilateral dislocation, UNE localized contralaterally in 17 elbows (30.4%) and ipsilaterally in 10 elbows (17.9%). Of 154 elbows with bilateral dislocation, 26 had UNE (16.9%). Complete dislocation decreased the odds of having UNE by 44% (odds ratio = 0.475; P = 0.028), and was associated with less severe UNE (P = 0.045).
CONCLUSIONS
UNE occurs less frequently and is less severe on the side of complete dislocation. Complete dislocation may have a protective effect on the ulnar nerve. Muscle Nerve 56: 242-246, 2017.
引言
复发性尺神经完全脱位被认为是肘部尺神经病变（UNE）发生的一个危险因素。然而，脱位在UNE发病机制中的作用仍不确定。
方法
我们研究了133例尺神经完全脱位患者，以确定这种情况是否为UNE的危险因素。在所有患者中，当肘部屈曲时，可触及神经在肱骨内上髁上滚动。
结果
在56例单侧脱位的肘部中，17例（30.4%）对侧出现UNE，10例（17.9%）同侧出现UNE。在154例双侧脱位的肘部中，26例（16.9%）出现UNE。完全脱位使发生UNE的几率降低了44%（优势比=0.475；P=0.028），并且与较轻度的UNE相关（P=0.045）。
结论
UNE在完全脱位侧的发生频率较低且程度较轻。完全脱位可能对尺神经有保护作用。《肌肉与神经》56: 242 - 246, 2017年。
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