Arthrex, Inc.
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Glenohumeral Instability / Labral Tear


Glenohumeral instability may arise from an acute injury or become a chronic disorder due to multiple injuries. Most often, anterior instability occurs after Glenohumeral dislocation/subluxation. Posterior instability occurs, more commonly, in contact athletes (football, lacrosse). Superior Labral Tears (SLAP Tears) do not result in instability but can have deleterious effects in overhead athletes and laborers. Multi-directional instability (MDI) is usually classified as a congenital disorder secondary to another systemic disorder (Collagen/Soft Tissue Laxity Disorder).  Instability occurs when the Glenoid Labrum and surrounding ligaments are stretched/torn. Bankart (with or without glenoid bone loss), HAGL and ALPSA lesions are responsible for anterior instability. Kim/Reverse Bankart Lesions are present with posterior instability. Global capsular laxity and Labral insufficiency are seen in MDI. Arthrex has developed specific techniques to address each type of instability.

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