The purpose of this study is to assess cartilage strain and contact areas following glenohumeral instability compared to healthy individuals.~This is a prospective longitudinal cohort study to investigate cartilage strain and labral injury utilizing advance MRI techniques. Patients with shoulder instability will be studied at baseline (after injury and prior to surgical treatment) with glenohumeral cartilage strain MRI protocol, pre and post exercise. Patient reported outcomes including Western Ontario Shoulder Instability Index (WOSI), American Shoulder and Elbow Surgeon (ASES) Score, and PROMIS physical function and pain scores, will also be evaluated.~Data from this study will be compared to a previous study involving healthy controls that underwent the same exercises and imaging.
The purpose of this study is to assess cartilage strain and contact areas following glenohumeral instability compared to healthy individuals.