在40具成人尸体的80侧上肢中观测了正中神经在肘部和肘上部的受压因素。肘上部臂筋膜和肘部肱二头肌筋膜的增厚和紧张、异常的腱性结构、Struthers 韧带等,均可造成正中神经受压。本文并利用700侧成人干燥肱骨,统计和观察了肱骨髁上突的出现率和形态。 The compressive factors of the median nerve at the elbows and elbows were observed in 80 adult upper limbs of 40 adult cadavers. Thickening and tension of the upper arm fascia and elbow biceps fascia, abnormal tendon structure, Struthers ligament, etc., can cause median nerve compression. In this paper, 700 adult adult humerus dry, statistics and observation of supracondylar humeral protrusion appearance and morphology.