Conclusion We found that the fascial arch of the opponens digiti minimi can compress the deep branch of the ulnar nerve causing motor deficit of the intrinsic muscles of hands.

结论小指对掌肌腱弓可以卡压尺神经深支，引起除小鱼际肌以外的尺神经支配的所有手内在肌的功能障碍。

B group: collagen nerve tubes were filled with an intrinsic framework only;

组：无雪旺细胞但具有内部支架结构的胶原神经管。