[Massive reconstruction of the acetabulum and proximal femur].

Bone allografts are used in situations of repeated hip surgery to repair bone loss and allow muscle fixation without excessive use of massive metallic prostheses. We examined 51 cases of hip reconstruction after a mean follow-up of 3 and a half years. Indications were: reoperations on arthroplasties, usually after the weight carrying areas of the acetabulum had been destroyed; repeated operations on the upper extremity pellucid femurs; bone tumours (especially chondrosarcomas).

[Massive osteocartilaginous allografts in the treatment of articular necrosis or loss of substance].

The problem of articular reconstruction arises increasingly often during the treatment of bone tumors because of the progress made in the choice of the chemotherapy. The excellent tolerance of osteocartilaginous allografts allows extending their indications to common traumatology. The biological, immunological, mechanical and clinical studies offer encouraging prospects in the field of massive osteocartilaginous grafts.