title: Prosthetic reconstruction for periacetabular malignant tumors.
abstract: This article reports the reconstruction method and functional results of a newly designed tumor hip prosthesis with a constrained joint mechanism 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 recurrence rate was 30%. More than 90% of the patients whose hips were reconstructed with the constrained tumor hip prosthesis experienced pain relief 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 complication. This prosthesis restored iliofemoral stability after surgical resection of periacetabular malignant tumors.
authors.affiliation: Department of Orthopaedic Surgery, Osaka University Medical School, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Uchida
authors.forename: A
authors.initials: A
authors.lastname: Myoui
authors.forename: N
authors.initials: N
authors.lastname: Araki
authors.forename: H
authors.initials: H
authors.lastname: Yoshikawa
authors.forename: T
authors.initials: T
authors.lastname: Ueda
authors.forename: Y
authors.initials: Y
authors.lastname: Aoki
mesh_terms: D000077:Acetabulum; D000293:Adolescent; D000328:Adult; D000368:Aged; D001859:Bone Neoplasms / Q000556:secondary / Q000601:surgery*; D005260:Female; D006622:Hip Prosthesis / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D011474:Prosthesis Design; D016459:Prosthesis-Related Infections / Q000209:etiology; D016896:Treatment Outcome