Reduction of missed posterior dislocation of the shoulder. Report of 2 cases, 1 of them bilateral.

We report 2 cases of missed posterior dislocation of the shoulder, 1 of them bilateral. Prominence of the acromion and coracoid, posterior bulging and complete elimination of external rotation of the humerus lead to the diagnosis which was established by an axillary radiographic view. All 3 shoulders were treated surgically according to Mc Laughlin. At 3-4 years follow-up the function was good and there were no signs of arthrosis or avascular necrosis of the head.