Complex acetabular reconstruction for metastatic tumor.

Twenty-six hips were reconstructed in 25 patients with periacetabular metastatic lesions. Twelve hip reconstructions were performed using a modified Harrington technique with polymethyl methacrylate, cancellous screws, and reinforcement rings (type I). Fourteen hip reconstructions were performed using bulk bone-graft and reinforcement rings (type II). According to the Musculoskeletal Tumor Society functional rating score, there was no appreciable difference between the two types of reconstructions. Either technique can give satisfactory results depending on the anatomic location and extent of bone loss. Careful patient selection is the prime determinant of a successful outcome.