肘部及前臂上段正中神经卡压综合征的临床解剖学研究

目的 探讨肘部正中神经卡压综合征的解剖学基础。方法 解剖观察５０侧上肢标本，结果 肱二头肌腱膜与正中神经的关系有非覆盖４０例（８０％），部分覆盖型６侧（１２％）和完全覆盖型４侧（８％）。旋前圆肌纤维桥斜过正中神经前方３２侧（６４％）。旋前圆肌肱骨头肌内有腱束８例（成人，占１８．６％），尺骨头汪岙较厚筋膜４７侧（９４％）。指浅屈肌起始结构有联合腱弓型４４侧（８８％），纤维情怀２侧型（４％）和腱束型（

Clinical anatomical study of the entrapment syndrome of median nerve at elbow and proximal forearm

Objective To explore the anatomical basis of the entrapment syndrome of median nerve. Method The fifty embalmed limbs were dissected.Results In the relationships between lacertus fibrous and median nerve,there are non-covering type (40, in 80%),partial-covering (6,in 12%) and complete-covering (4, in 8%),Pronator teres fibrous bridges were seen in 32 limbs (64%). The obvious intramuscular tendinous bundles in the humeral heads were observed (adults 8, in 18.6%). The thickened fascia in the superficial layer of ulnar head was seen in 47 (94%). The structures of origin border between two heads of flexor digitorum superficialis have three types, that is, conjoined tendinous arch (44, in 88% ),fibrous arch (2, in 4%),intramuscular tendinous bundle (4, in 8%). Conclusion The aponeurosis and thickened fascia at elbow and upper segment of the forearm are the anatomic basis of median nerve entrapment.