Objective To study the anatomical characteristics of extensor pollicis brevis tendon (EPB) and fibrous sheath of flexor carpi radialis (FCR), and search for a new method of reconstruction of the thumb opposition.

• 目的 研究拇短伸肌腱和桡侧腕屈肌腱纤维鞘管的解剖特点 ,寻找拇指对掌功能重建的方法。