Effect of glenohumeral ligaments on posterior shoulder stabilization: a biomechanical study

ABSTRACT: Objectives: To theoretically confirm that the glenohumeral ligament (GHL), specifically the inferior glenohumeral ligament (IGHL), plays an important role in posterior shoulder stability in different postures, and to provide reference for clinical diagnosis and treatment of posterior shoulder instability (PSI). Materials and Methods: In this retrospective study, bone-ligament-bone models were established in 15 fresh adult shoulder joint specimens and selective cutting was performed for analysis. The humeral head was loaded posteriorly at a central pressure of 22N using the INSTRON8874 biomechanical testing system and the load-displacement curve was plotted. The posterior displacement of the humeral head was measured after continuous cutting of the following structures: (1) complete; (2) su

SUBMITTER: Yi M 

PROVIDER: S-EPMC10086893 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature