fig7

Figure 7. Anteroposterior radiographs of a 57-year-old male with: chondrosarcoma of the proximal humerus preoperatively (A); two months after wide excision and proximal humeral APC reconstruction with hemiarthroplasty (B); Seven years postoperatively, patient represented with excellent integration of the allograft but with proximal migration of the humeral head had worsening anterior superior escape on physical exam (C); anteroposterior radiographs immediately postoperatively after conversion from hemiarthroplasty to RTSA with glenosphere placement and modular exchange of the humeral head component for a humeral tray (D). Blue arrow notes the junction between the allograft and native bone.