What are the indications of glenoid impingement in supraspinatus tendonitis?

Updated: Dec 03, 2018
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Recently, the concept of glenoid impingement has been suggested as an explanation for partial-thickness rotator cuff tears in throwing athletes, particularly those tears involving the articular surface of the rotator cuff tendon. Such tears might occur in the presence of instability due to increased tensile stresses on the rotator cuff tendon either from abnormal motion of the glenohumeral joint or from increased forces on the rotator cuff necessary to stabilize the shoulder.

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