Objective To study the effect of Human hair keratin artificial tendon (HHKAT) transfer for treatment of late upper brachial plexus root avulsion in shoulder abduct and elbow flexion reconstruction.

• 目的 探讨人发角蛋白人工肌腱移植在治疗晚期上臂丛根性撕脱伤，重建肩外展及屈肘功能中应用的意义。