Objective?To treat upper trunk avulsion of brachial plexus by neurotization using a part of ulnar nerve.The clinical outcome and the role of intraoperative EMG monitoring was discussed.

• 目的?研究利用尺神经部分神经束移位，治疗臂丛上干根性撕脱伤的临床效果，以及术中应用诱发电位检测供区神经束的经验。