Static capsuloligamentous restraints to superior-inferior translation of the glenohumeral joint
Static capsuloligamentous restraints to superior-inferior translation of the glenohumeral joint
复制标题
静态囊韧带对盂肱关节上下平移的限制
DOI：
10.1177/036354659202000608
复制
发表时间：
1992
期刊：
影响因子：
--
通讯作者：
P. Torzilli
中科院分区：
文献类型：
--
作者：
J. Warner;Xiang;R. Warren;P. Torzilli
本研究的目的是确定特定的关节囊韧带结构对抑制盂肱关节上下平移的贡献。使用四自由度试验装置对11个尸体肩关节进行了试验。当施加50 N的上级和低级力时，肱骨在三个平面内自由平移，并自由屈曲和伸展。在三个外展位置（0°、45°和90°）和三个旋转位置（中立、最大内部和外部）进行测试。对完整、通风和特定关节囊韧带结构分离后的肩关节进行测试。对内收肩向下平移的主要限制是上级盂肱韧带。喙肱韧带似乎没有明显的悬吊作用。在进行性外展时，盂肱韧带的前部和后部成为抵抗下平移的主要静态稳定器：前部在外展45°时是主要的关节囊约束，而后部在外展90°、中性旋转时是主要的关节囊约束。我们的研究结果表明，临床评估盂肱关节在上下平面的平移应在多个位置的外展和旋转。
The purpose of this study was to determine the contri butions of specific capsuloligamentous structures to restraining superior-inferior translation of the glenohu meral joint. Eleven cadaveric shoulders were tested using a four degrees-of-freedom test apparatus. The humerus was free to translate in three planes and free to flex and extend when a superior and inferior force of 50 N was applied. Testing was performed in three positions of abduction (0°, 45°, and 90°) and three positions of rotation (neutral, maximum internal, and external). Shoulders were tested intact, vented, and after division of specific capsuloligamentous structures. The primary restraint to inferior translation of the ad ducted shoulder was the superior glenohumeral liga ment. The coracohumeral ligament appeared to have no significant suspensory role. With progressive abduc tion, the anterior and posterior portions of the gleno humeral ligament become the main static stabilizers resisting inferior translation: the anterior portion was the primary capsular restraint at 45° of abduction, while the posterior portion was the primary restraint at 90° of abduction, neutral rotation. Our results indicate that clinical assessment of glenohumeral translation in the superior-inferior plane should be performed in multiple positions of abduction and rotation.