2021 Annual Meeting Shoulder Access Pass-It’s More than Size that Matters: The Role of Glenoid Concavity in Shoulder Instability with Anterior Bone Loss

It’s More than Size that Matters: The Role of Glenoid Concavity in Shoulder Instability with Anterior Bone Loss

Video Transcription

Video Summary

Jens Wermers from Münster University Hospital presented a study on the role of glenoid concavity in shoulder instability with anterior glenoid bone loss. Traditionally, treatment decisions—soft tissue repair or bone block reconstruction—rely on defect size, but this study shows glenoid concavity significantly impacts shoulder stability. Using cadaveric glenoids and robotic dislocation tests, results revealed concavity better predicts stability loss than defect size alone. The calculated bony shoulder stability ratio correlates well with measured stability and can be estimated from radiological data, offering a potential personalized clinical tool. Future research will incorporate muscle and soft tissue effects.

Asset Caption

Jens Wermers, MSc

Keywords

glenoid concavity

shoulder instability

anterior glenoid bone loss

bony shoulder stability ratio

robotic dislocation tests