Figure 2: A 40-year-old with right shoulder pain and avascular necrosis secondary to previous steroid use radiograph (a). Magnetic resonance imaging demonstrated subchondral collapse, with moderate glenoid cartilage thinning (b and c). Intraoperatively, a large area of cartilage separation with necrotic subchondral bone was apparent (d). Because of limited glenoid cartilage changes, hemiarthroplasty was completed, with an excellent result at 4 years postoperatively (e and f)