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