Bone allografts in salvage of difficult hip arthroplasties.
Fourteen bone allograft transplantations were performed in 12 patients: five whole-hip osteoarticular allografts, eight acetabular wall, and one proximal femur with long-stem prosthesis. Average followup time was 19 months. Average patient age was 46 years. Acetabular grafts appeared healed. There was narrowing of joint space in all whole-hip allografts. However, joint narrowing did not correlate with functional results. Failures were attributed to collapse of the femoral head in one patient and nonunion at the host-allograft junction in two patients. However, even in primary failures, allografts provided bone stock to substitute for massive bone loss; this allowed for further reconstruction with endoprostheses. Intercalary segmental allografts combined with prosthetic devices gave the best results.
D000077:Acetabulum / Q000637:transplantation; D000328:Adult; D000368:Aged; D005260:Female; D005269:Femur / Q000637:transplantation; D005500:Follow-Up Studies; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000637:transplantation*; D006622:Hip Prosthesis; D006801:Humans; D008875:Middle Aged; D011446:Prospective Studies; D011859:Radiography; D014184:Transplantation, Homologous