title: Clinical outcome study and radiological findings of Zweymuller metal on metal total hip arthroplasty. a follow-up of 6 to 15 years.
abstract: We report the clinical and radiological outcome of 99 Zweymuller metal on metal total hip arthroplasties in 84 patients followed up prospectively for a mean period of 9.5 (range, 6-15) years. There were 29 (34.5%) male and 55 (65.5%) female patients with a mean age of 62.85 years (range, 50-70 years) at the time of surgery. All patients had osteoarthritis. One acetabular component and one stem were revised due to aseptic loosening. One femoral stem was revised due to a periprosthetic fracture. HHS score improved from a preoperative mean of 62.56 points (SD 8.87) to a final postoperative follow-up mean of 93.48 (SD 7.7). Cumulative success rate for both implants at 13 years, with aseptic loosening as the end point, was 97.05%, while for both implants at 13 years, with revision for any reason as the end point, it was 91.17%. Satisfactory results were observed with the use of this prosthesis.
authors.affiliation: Orthopaedic Department of the General Hospital of Volos, Theessalia, Hellenic Republic. palaiohorlidis@yahoo.co.uk
authors.forename: Ilias S
authors.initials: IS
authors.lastname: Paleochorlidis
authors.forename: Leonidas S
authors.initials: LS
authors.lastname: Badras
authors.forename: Efstathios F
authors.initials: EF
authors.lastname: Skretas
authors.forename: Vasilios A
authors.initials: VA
authors.lastname: Georgaklis
authors.forename: Theofilos S
authors.initials: TS
authors.lastname: Karachalios
authors.forename: Konstantinos N
authors.initials: KN
authors.lastname: Malizos
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint / Q000000981:diagnostic imaging*; D006622:Hip Prosthesis; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000000981:diagnostic imaging / Q000601:surgery; D011859:Radiography; D012086:Reoperation / Q000706:statistics & numerical data