Rapid Destruction of the Humeral Head Caused by Subchondral Insufficiency Fracture: A Report of Two Cases

Figure 1

Case  1. Serial preoperative radiographs. (a) At the first visit, the humeral head shows a minor collapse. (b) Three weeks later, the collapse of the humeral head has progressed. (c) Four months later, the destruction of the shoulder is further progressed, including the glenoid.

(a)

(b)

(c)