APPLICATION OF TUMOR PROSTHESES IN SECOND ARY NEOPLASTIC DESTRUCTION OF THE PROXIMAL FEMUR

Total hip arthroplasty was performed with PMMA-augmented tumor prosthe ses in 42 individuals-suffering from metastatic destruction of the pro ximal end of the femur at the Orthopedic University Hospital Mainz fro m 1980 to 1992. Neoplastic lesions had been triggered by carcinomas of the breast in 25 female patients. 24 of our patients presented with p athologic fractures. In all patients capable of walking preoperatively early mobilization could be attained by total hip arthroplasty. Pain relief was achieved in each patient. Resection of the major trochanter and, partially, of the pelvitrochanteric muscle sleeve entailed luxat ion of the prosthesis six times in 5 individuals during the first post operative two months; closed reduction was practicable in all of them. Postoperative survival time amounted to an average of 10.5 months. Le g length and hip function were successfully re-established by implanti ng tumor prostheses after resection of the proximal part of the femur.