title: Rotational acetabular osteotomy for hip dysplasia: 61 hips followed for 8-15 years.
abstract: We operated on 54 patients (61 joints) with rotational acetabular osteotomy (RAO) due to dysplasia of the hip with pre- or early-stage osteoarthritis/arthrosis. The mean follow-up was 11 (8-15) years. The Merle d'Aubigné median score increased from 14 to 15. In 2 patients (2 joints), the score decreased from 15 to 13. Progression of arthrosis was seen in 6 joints on the radiographs at follow-up. Kaplan-Meier survivorship analysis predicted an 89% (95% confidence interval 80-99) prevention of worsening of arthrosis at 10 years. Postoperative joint congruency was a risk factor for progression of arthrosis.
authors.affiliation: Department of Orthopaedic Surgery, Hiroshima University School of Medicine, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan. yasuyuji@hiroshima-u.ac.jp
authors.forename: Yuji
authors.initials: Y
authors.lastname: Yasunaga
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Ochi
authors.forename: Koichi
authors.initials: K
authors.lastname: Shimogaki
authors.forename: Susumu
authors.initials: S
authors.lastname: Yamamoto
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Iwamori
mesh_terms: D000077:Acetabulum / Q000000981:diagnostic imaging / Q000601:surgery*; D000293:Adolescent; D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006618:Hip Dislocation, Congenital / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery*; D010027:Osteotomy; D011379:Prognosis; D011859:Radiography; D013997:Time Factors; D014102:Torsion Abnormality