肘管综合征37例临床分析

目的探讨肘管综合征（cubital tunnel syndrome，CubTS）患者的临床及电生理特点，提高对本病的认识，方法回顾性分析37例CubTS患者的临床及电生理资料，并进行自身健患侧电生理数据的配对比较。结果37例患者均诉患肢小指及无名指尺侧半发麻，46％的患者因长期屈肘引发CubTS，电生理发现患侧尺神经跨肘段运动传导速度（motor conduction velocity，MCV）、小指一腕感觉神经动作电位（sensory nerve action potential，SNAP）波幅、腕－肘的神经干电位（nerve action potential，NAP）波幅分别为（33．57±12．16）m／s、（5．91±5．88）μV、（4．45±5．34）μV，与健侧比较，差异有统计学意义。结论神经电生理检测可早期确诊CubTS，长时间的屈肘是CubTS的主要原因。

Clinical analysis of 37 cases of cubital tunnel syndrome

Objective To explore the clinical manifestation and electroneurophysiological findings in cubital tunnel syndrome （CubTS）, and to improve our understanding of CubTS. Methods The clinical manifestation and electroneurophysiological findings of 37 cases of CubTS were retrospectively analyzed. Electroneurophysiological data of symptomatic upper limbs were compared with those of asymptomatic counterpart upper limbs. Results The most complaint of patients was paresthesia in the areas supplied by the ulnar nerves. 46% of the patients with CubTS were caused by flexion of the elbow for prolonged periods. The primary electroneurophysiological findings were the abnormity of the motor conduction velocity （MCV） in across elbow segment of the ulnar nerve, the amplitude of sensory nerve action potential （SNAP） of the little finger to wrist and the amplitude of nerve action potential （NAP） in the ulnar nerve of the wrist to elbow, as （33.57 ± 12. 16） m/s, （5.91 ± 5.88 ） μV, （4.45 ± 5.34）μV, respectively. The difference between symptomatic upper limbs and their asymptomatic counterpart upper limbs was significant. Conclusion Electroneurophysiological detection is helpful for diagnosing CubTS in early stage. The dominating cause is flexion of the elbow for prolonged periods.