[Function study for finite element analysis of AB-IGHL during humeral external rotation].
The motions of humeral external rotation with and without the anterior band of inferior glenohumeral ligament complex (AB-IGHL) were simulated. As a result of comparison, the contact pressure and contact force are all higher when the AB-IGHL was included in the model. Therefore, it is theoretically proved that the AB-IGHL constrains the motion of humerus during humeral external rotation. The predicted values for von Mises and the maximum tense force in the AB-IGHL were 4.433 MPa and 37.32 N respectively, occurring on the humeral side of the ligament. This approach to evaluating the function of AB-IGHL would provide greater insight into the mechanical contribution of AB-IGHL to joint function, identify the mechanism of a hurt to AB-IGHL, and provide a quantitative means for developing low-risk rehabilitation protocols.
Zhang
Linlin
L
Institute of Biomedical Manufacturing and Life Quality Engineering, Shanghai Jiaotong University, Shanghai 200240, China. zll7979@163.com
Wang
Jianping
J
Wang
Chengtao
C
D020342:Finite Element Analysis; D006801:Humans; D008023:Ligaments, Articular / Q000502:physiology*; D016059:Range of Motion, Articular; D012399:Rotation; D012785:Shoulder Joint / Q000033:anatomy & histology / Q000502:physiology*; D013718:Tensile Strength