title: Arthroplasty of the hip in ankylosing spondylitis.
abstract: In fifty-six patients with ankylosing spondylitis three types of arthroplasty had been performed in ninety-nine hips. Forty-one of the patients were men and fifteen were women, their average age at operation being forty-two years. Primary pseudarthrosis produced well-satisfied patients, but only a fair result in five hips, whereas cup arthroplasty resulted in a poor outcome for eight hips, all of which needed revision. Total replacement of eighty-six hips, however, led to 73 per cent being graded as good or excellent up to ten years later. The main complications were deep infection of five hips, para-articular ossification around nine hips (six leading to bony ankylosis), and fibrous ankylosis of six hips.
mesh_terms: D000328:Adult; D000844:Ankylosis / Q000209:etiology; D001178:Arthroplasty / Q000009:adverse effects / Q000379:methods; D001847:Bone Diseases / Q000209:etiology; D005260:Female; D006615:Hip / Q000601:surgery*; D006621:Hip Joint; D006801:Humans; D007239:Infections / Q000209:etiology; D007595:Joint Prosthesis; D008297:Male; D013167:Spondylitis, Ankylosing / Q000601:surgery*