Majority of<unk> s occur due to chronic impingement in patients >40yrs
Acute<unk> s require significant trauma: shoulder dislocation, FOOSH
Consider<unk>  in patient with weakness for >3wk after acute shoulder dislocation
Supraspinatus is most commonly affected tendon
Rotator cuff tear
Traumatic/Acute:
Biceps tendinitis
Shoulder Dislocation
Medial epicondylitis
Anterior shoulder dislocation
Biceps tendon rupture
Posterior shoulder dislocation