腓深副神经对腓深神经损伤诊断的影响

The effects of the accessory deep peroneal nerve on the diagnosis of the deep peroneal nerve injury

目的了解腓深副神经(腓浅神经的异常分支)对腓深神经损伤诊断的影响。方法收集10例腓深神经损伤合并存在腓深副神经的病例,其中男7例,女3例,平均年龄32.8岁,就其解剖基础、临床表现、电生理检测结果以及诊断进行分析。结果由于存在腓深副神经,腓深神经损伤时,趾短伸肌的外侧部或全部功能得以保留,导致患者腓深神经损伤程度与其临床表现和电生理检测结果不符。结论充分了解腓深副神经这一解剖变异的特点,对临床正确评价腓深神经损伤有重要意义,同时也可以避免对腓深神经损伤电生理检测结果的错误分析。

Objective To study the effects of the accessory deep peroneal nerve,an anomalous branch of the superficial peroneal nerve, on the diagnosis of the deep peroneal nerve injuries. Methods Ten cases （7 male, 3 female, mean age 32.8 years） of deep peroneal nerve injuries with the presence of accessory deep peroneal nerve were examined in this study. All the cases were reviewed and analyzed with regard to the basic anatomy, clinical symptoms, electrophysiological data and diagnosis. Results In the presence of the accessory deep peroneal nerve,the lesions of the deep peroneal nerve spare the function of the lateral portion or the whole of the the extensor digitorum brevis （EDB） muscle. It may result in an unconformity of the severity of lesion and its clinical symptoms as well as the electrophysiological findings. Conclusion Knowledge of this anomaly is of crucial importance in the clinical evaluation of nerve injuries of deep peroneal nerve, as well as in avoiding errors in interpreting the electrophysiological data of this nerve.