PROSTHETIC RECONSTRUCTION FOR PERIACETABULAR MALIGNANT-TUMORS

This article reports the reconstruction method acid functional results of a newly designed tumor hip prosthesis with a constrained joint mec hanism which was used after treatment for 13 primary and 5 metastatic periacetabular malignant bone tumors. The overall 5-year survival rate for patients with primary tumors (n = 13) was 50 %. The local recurre nce rate was 30 %. More than 90 % of the patients whose hips were reco nstructed with the constrained tumor hip prosthesis experienced pain r elief and were able to walk with a cane. No patients had greater than 3 cm shortening of the involved limb, infection was the most serious c omplication, This prosthesis restored iliofemoral stability after surg ical resection of periacetabular malignant tumors.