Morrey B F, An K N
Clin Orthop Relat Res. 1985 Dec(201):84-90.
Dissections of 10 fresh cadaver specimens revealed an important insertion of the posterior portion of the lateral collateral ligament to the ulna at the crista supinatoris. The humeral origin of the medial ligament attachments was found to lie posterior to the axis of elbow flexion; in this position a cam effect is created so that ligament tension varies with elbow flexion. The three-dimensional distance between the origin and the insertion of the anterior portion of the medial collateral ligament was found to increase slightly from extension to approximately 60 degrees of flexion; thereafter, it remained nearly constant. The distance of the posterior portion increased by about 9 mm from 60 degrees to 120 degrees of flexion. The flexion axis was shown to pass through the origin of the lateral collateral ligament, so the length of this structure was not changed during elbow flexion.
对10个新鲜尸体标本进行解剖后发现，外侧副韧带后部在旋后肌嵴处有一重要附着点至尺骨。发现内侧韧带附着点的肱骨起点位于肘关节屈曲轴后方；在此位置会产生一种凸轮效应，使得韧带张力随肘关节屈曲而变化。发现内侧副韧带前部起点与止点之间的三维距离从伸直位到大约60度屈曲时略有增加；此后，该距离几乎保持恒定。后部距离从60度屈曲到120度屈曲增加了约9毫米。屈曲轴显示穿过外侧副韧带的起点，因此该结构的长度在肘关节屈曲过程中未发生改变。
