title: Total hip arthroplasty in ankylosing spondylitis: an analysis of 181 hips.
abstract: The results of cemented total hip arthroplasty (THA) in patients with ankylosing spondylitis were studied to determine the utility of THA for these patients. A total of 103 patients with ankylosing spondylitis underwent 181 THAs; 72 patients (69.9%) had bilateral surgery. The mean follow-up was 10.3 years. The mean age of patients at surgery was 47 years. Before surgery, 42 hips (23.2%) were ankylosed. Revision surgery was carried out in 25 hips (13.8%). Heterotopic ossification was present in 21 hips (11.6%); however, no patients had functional impairment or reankylosis. At final follow-up examination, 173 hips (96%) had an excellent (low) pain score, and 53 hips had a normal or near-normal function score (29.2%). The probability of survival of the implant was 71% at 27 years. THA provides long-term improvement in hip function for patients with ankylosing spondylitis.
authors.affiliation: Centre for Hip Surgery, Wrightington Hospital, Wigan, United Kingdom.
authors.forename: Atul B
authors.initials: AB
authors.lastname: Joshi
authors.forename: Ljubisa
authors.initials: L
authors.lastname: Markovic
authors.forename: Kevin
authors.initials: K
authors.lastname: Hardinge
authors.forename: John C M
authors.initials: JC
authors.lastname: Murphy
mesh_terms: D019644:Arthroplasty, Replacement, Hip; D002484:Cementation; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000453:epidemiology; D011859:Radiography; D013167:Spondylitis, Ankylosing / Q000601:surgery*; D013997:Time Factors