title: Rotational acetabular osteotomy for severely dysplastic acetabulum.
abstract: The operative procedures chosen for arthrosis with severe acetabular dysplasia vary among orthopaedic surgeons. We operated on 250 hips using the rotational acetabular osteotomy (RAO) method of Ninomiya and Tagawa [8]. In this report, we describe the technique of RAO and the results of this procedure in patients with severely dysplastic hips. Among the 250 hips, there were 6 which were classified as Severin group V. In those hips, the CE angle was less than 0 degrees, and the femoral head showed superolateral subluxation. After acetabular osteotomy with straight and curved osteotomes, smooth inferolateral rotation could be done in all cases. At the latest follow-up symptoms were improved remarkably, especially pain. Radiographically, adequate coverage of the femoral head was achieved and joint congruence improved in all 6 hips.
authors.affiliation: Department of Orthopaedic Surgery, Juntendo University School of Medicine, Tokyo, Japan. nozawa@med.juntendo.ac.jp
authors.forename: M
authors.initials: M
authors.lastname: Nozawa
authors.forename: K
authors.initials: K
authors.lastname: Shitoto
authors.forename: T
authors.initials: T
authors.lastname: Hirose
authors.forename: K
authors.initials: K
authors.lastname: Matsuda
authors.forename: K
authors.initials: K
authors.lastname: Michino
authors.forename: H
authors.initials: H
authors.lastname: Kajihara
authors.forename: K
authors.initials: K
authors.lastname: Maezawa
authors.forename: H
authors.initials: H
authors.lastname: Kurosawa
mesh_terms: D000077:Acetabulum / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery; D000293:Adolescent; D000328:Adult; D016025:Bone Transplantation; D005260:Female; D005500:Follow-Up Studies; D006618:Hip Dislocation, Congenital / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D008297:Male; D015207:Osteoarthritis, Hip / Q000000981:diagnostic imaging / Q000601:surgery*; D010027:Osteotomy / Q000379:methods*; D011183:Postoperative Complications / Q000000981:diagnostic imaging; D011859:Radiography; D016896:Treatment Outcome