Steroid-induced osteonecrosis of the humeral head.

Steroid-induced osteonecrosis is a disease of modern medicine. Prevention remains the hallmark of management; however, as long as there are medical conditions requiring steroid therapy, osteonecrosis will remain a problem. An understanding of the pathophysiology, in addition to the clinical and radiographic manifestations of this disease process, will aid the physician in the unique challenge of diagnosing and treating osteonecrosis of the humeral head.