Abstract：
METHODS: A 77-year-old woman who sustained a distal radius and ulna fracture underwent open reduction internal fixation through a standard flexor carpi radialis (FCR) approach. On dissection, a proximal division of the median nerve was identified, with an aberrant motor branch crossing radial to ulnar deep to FCR and superficial to flexor pollicis longus.
CONCLUSIONS: Although many anatomic variants of the median nerve have been described, the current case demonstrates a particularly important median motor branch variant, imposing a substantial risk of iatrogenic injury during a standard FCR approach.
CONCLUSIONS: Although many anatomic variants of the median nerve have been described, the current case demonstrates a particularly important median motor branch variant, imposing a substantial risk of iatrogenic injury during a standard FCR approach.
摘要：
方法：一名77岁女性患者桡骨远端和尺骨骨折，通过标准的桡骨腕屈肌（FCR）入路进行切开复位内固定。在解剖时，确定了正中神经的近端分裂，异常的运动分支穿过radial到尺骨，深FCR和浅层到屈肌。
结论：尽管已经描述了正中神经的许多解剖变体，目前的案例显示了一个特别重要的中位运动分支变异，在标准FCR方法中施加医源性损伤的重大风险。
结论：尽管已经描述了正中神经的许多解剖变体，目前的案例显示了一个特别重要的中位运动分支变异，在标准FCR方法中施加医源性损伤的重大风险。
