Objective To observe the morphological changes of different muscles after brachial plexus injury and investigate the role of cell apoptosis in denervation atrophy.

• 目的以臂丛神经损伤患者为对象，研究不同部位失神经骨骼肌的萎缩规律，并探讨细胞凋亡在失神经萎缩骨骼肌中的作用。