Pseudoparalysis of shoulder caused by glenohumeral interposition of rotator cuff tendon stumps: a rare complication of posterior shoulder dislocation.

Magnetic resonance imaging (MRI) findings of a rare complication of posterior glenohumeral dislocation are described in two patients which led to shoulder dysfunction caused by interposition of rotator cuff tendon(s) into the glenohumeral joint. Both patients underwent successful surgical fixation and now have returned to normal shoulder function.