title: Total hip arthroplasty using porous-coated femoral components in patients with rheumatoid arthritis.
abstract: We studied the results of total hip arthroplasty (THA) using AML porous-coated femoral components at a mean follow-up of 11 years in a non-selected, consecutive series of patients with rheumatoid arthritis. We reviewed 64 patients with 82 primary THAs using these components. There were seven men (8 hips) and 57 women (74 hips) with a mean age of 55.1 years (24 to 80) at the time of surgery. Nine patients (11 hips) died before the two-year follow-up. Of the remaining 71 hips, only one stem was revised for aseptic loosening. Survivorship for the stems was 98.1% (95% confidence interval (CI) 94.5 to 100.0) at ten years, using a life-table analysis, with revision for any reason as an endpoint. Of the 70 unrevised stems, 66 (94%) had bony ingrowth, while four (6%) were radiologically loose at the most recent follow-up (mean 11.4 years). Our study shows the excellent long-term results which can be achieved with porous-coated femoral components in patients with rheumatoid arthritis.
authors.affiliation: Anderson Orthopaedic Research Institute, Alexandria, Virginia, USA.
authors.forename: A K
authors.initials: AK
authors.lastname: Jana
authors.forename: C A
authors.initials: CA
authors.lastname: Engh
authors.forename: P J
authors.initials: PJ
authors.lastname: Lewandowski
authors.forename: R H
authors.initials: RH
authors.lastname: Hopper
authors.forename: C A
authors.initials: CA
authors.lastname: Engh
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001172:Arthritis, Rheumatoid / Q000000981:diagnostic imaging / Q000401:mortality / Q000601:surgery*; D020099:Coated Materials, Biocompatible; D005260:Female; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D016348:Osseointegration / Q000502:physiology; D011183:Postoperative Complications / Q000000981:diagnostic imaging / Q000401:mortality / Q000601:surgery; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011859:Radiography; D012086:Reoperation; D015996:Survival Rate
chemical_list: D020099:Coated Materials, Biocompatible