抄録
Posterior dislocation of the shoulder is a rare condition, comprising only 2% of shoulder dislocations. The diagnosis is often missed and the treatment then becomes difficult.
It is most important that correct diagnosis is made initially with adequate physical examination and radiographic findings in the anterioposterior and axial positions.
We have experienced treating two cases of unreduced posterior dislocation fracture of the shoulder. Open reduction was carried out on one case which had been overlooked for one month and had been treated as a fracture of the major tuberosity. Rotational osteotomy of the proximal humerus was done on another one which had been missed for three months and had been treated as a rotator cuff tear. Some limitations of shoulder motion were observed in both cases, but there were no restrictions on daily living.
