title: Megaprosthetic replacement of the pelvis: function in 17 cases.
abstract: Between 1980 and 1997, we treated 39 patients (mean age 39 (16-66) years, 24 men) with megaprosthetic replacement of a large bone defect (> 10 cm) of the pelvis. The bone resection was necessary in 38 cases due to malignant bone and soft tissue tumors and in 1 case due to hydatid disease. Polyacetal hemipelvic replacement was performed in 29 cases, CAD hemipelvic replacement in 8 cases, and a saddle prosthesis was inserted in 2 cases. All patients were followed clinically and radiographically. The mean follow-up was 58 (15-110) months. 20 patients have died of their tumor. 10 local infections occurred, in 2 cases necessitating hemipelvectomy. Hip dislocation occurred in 6 cases. 13 of the remaining 17 survivors had good or excellent clinical results according to the Enneking evaluation (MSTS). In 6 of the 17 survivors, radiographs revealed implant loosening.
authors.affiliation: Department of Trauma, University of Saarland, Homburg/Saar, Germany.
authors.forename: R J
authors.initials: RJ
authors.lastname: Wirbel
authors.forename: M
authors.initials: M
authors.lastname: Schulte
authors.forename: B
authors.initials: B
authors.lastname: Maier
authors.forename: W E
authors.initials: WE
authors.lastname: Mutschler
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001847:Bone Diseases / Q000000981:diagnostic imaging / Q000601:surgery; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D004443:Echinococcosis / Q000000981:diagnostic imaging / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010384:Pelvic Bones / Q000000981:diagnostic imaging; D019736:Prostheses and Implants; D011859:Radiography; D012189:Retrospective Studies; D012509:Sarcoma / Q000601:surgery*; D012983:Soft Tissue Neoplasms / Q000601:surgery*