title: Intermediate results of simultaneous alumina-on-alumina bearing and alumina-on-highly cross-linked polyethylene bearing total hip arthroplasties.
abstract: This study compared the clinical and radiographic results and the prevalence of osteolysis between alumina-on-alumina and alumina-on-highly cross-linked polyethylene bearings after cementless total hip arthroplasties in the 100 patients younger than 50 years of age. There were 66 men and 34 women; the mean age at the time of surgery was 45.3 years (range, 25 to 49 years). The mean duration of follow-up was 5.6 years (range, five to seven years). The pre-and postoperative Harris hip scores were similar (39 and 41 points, respectively and 93 points and 94 points, respectively). No acetabular or femoral component had aseptic loosening in either group. The mean annual penetration of the highly cross-linked polyethylene was 0.06 +/- 0.03 mm. No hip in either group had acetabular or femoral osteolysis.
authors.affiliation: Joint Replacement Center of Korea, Ewha Womans University School of Medicine, Seoul, South Korea.
authors.forename: Young-Hoo
authors.initials: YH
authors.lastname: Kim
authors.forename: Jun-Shik
authors.initials: JS
authors.lastname: Kim
authors.forename: Yoo-Wang
authors.initials: YW
authors.lastname: Choi
authors.forename: Oh-Ryong
authors.initials: OR
authors.lastname: Kwon
mesh_terms: D000328:Adult; D000537:Aluminum Oxide / Q000009:adverse effects; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation* / Q000379:methods; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000502:physiology / Q000601:surgery; D006622:Hip Prosthesis / Q000009:adverse effects; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D010014:Osteolysis / Q000453:epidemiology; D010020:Osteonecrosis / Q000601:surgery*; D020959:Polyethylene / Q000009:adverse effects; D011859:Radiography; D012189:Retrospective Studies; D012307:Risk Factors; D016896:Treatment Outcome
chemical_list: D020959:Polyethylene; D000537:Aluminum Oxide