Quantitative MRI of Glenohumeral Cartilage & Labrum in Shoulder Instability

Quantitative MRI of Glenohumeral Cartilage & Labrum in Shoulder Instability

The purpose of this study is to assess cartilage strain and contact areas following glenohumeral instability compared to healthy individuals.

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.

Inclusion Criteria:

• Males and females ≥ 18 years old and ≤ 50 years old
• Acute injury involving anterior (front) shoulder dislocation
• Willingness to undergo arthroscopic shoulder stabilization
• Willingness to participant in standard rehabilitation

Exclusion Criteria:

• Moderate to severe osteoarthritis prior to surgery
• Will undergo bony augmentation to glenoid or humerus in addition to shoulder stabilization
• Unable to undergo standard pre and post-injury/operative rehabilitation
• History of inflammatory arthritis
• Previous surgery of the injured shoulder