title: Cementless acetabular socket revisions using Metasul metal-on-metal bearings.
abstract: Thirty-four hips were treated with cementless acetabular socket revisions using a metal-on-metal bearing. The causes of revision were aseptic loosening in 33 hips and septic loosening in 1 hip. Revisions were performed for acetabular sockets in 28 hips and for acetabular sockets and femoral stems in 6 hips. Mean follow-up duration was 6.2 years (range, 4.0-9.1 years), and mean Harris Hip Scores improved from 56 to 92 points. No hip required further revision for aseptic loosening. Focal femoral osteolysis newly developed in zone I in 1 hip, which was treated by curettage and bone grafting. The authors suggest that second-generation metal-on-metal bearings in cementless acetabular socket revisions can achieve good medium-term clinical and radiographic results.
authors.affiliation: Center for Joint Disease, Chonnam National University Hwasun Hospital, Hwasun-Gun, Jeonnam, Korea.
authors.forename: Kyung Soon
authors.initials: KS
authors.lastname: Park
authors.forename: Taek Rim
authors.initials: TR
authors.lastname: Yoon
authors.forename: Eun Kyoo
authors.initials: EK
authors.lastname: Song
authors.forename: Keun Bae
authors.initials: KB
authors.lastname: Lee
mesh_terms: D000077:Acetabulum / Q000601:surgery*; D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D001672:Biocompatible Materials; D001843:Bone Cements; D005260:Female; D006621:Hip Joint / Q000601:surgery; D006622:Hip Prosthesis; D006801:Humans; D007592:Joint Diseases / Q000601:surgery*; D008297:Male; D008670:Metals; D008875:Middle Aged; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012086:Reoperation
chemical_list: D001672:Biocompatible Materials; D001843:Bone Cements; D008670:Metals