title: Adolescent slipped capital femoral epiphysis treated by a modified Dunn osteotomy with surgical hip dislocation.
abstract: Between June 2001 and November 2008 a modified Dunn osteotomy with a surgical hip dislocation was performed in 30 hips in 28 patients with slipped capital femoral epiphysis. Complications and clinical and radiological outcomes after a mean follow-up of 3.8 years (1.0 to 8.5) were documented. Subjective outcome was assessed using the Harris hip score and the Western Ontario and McMaster Universities osteoarthritis index questionnaire. Anatomical or near-anatomical reduction was achieved in all cases. The epiphysis in one hip showed no perfusion intra-operatively and developed avascular necrosis. There was an excellent outcome in 28 hips. Failure of the implants with a need for revision surgery occurred in four hips. Anatomical reduction can be achieved by this technique, with a low risk of avascular necrosis. Cautious follow-up is necessary in order to avoid implant failure.
authors.affiliation: Kinderspital Zürich, Steinwiesstrasse 75, 8032 Zürich, Switzerland. hance.huber@gmail.com
authors.forename: H
authors.initials: H
authors.lastname: Huber
authors.forename: C
authors.initials: C
authors.lastname: Dora
authors.forename: L E
authors.initials: LE
authors.lastname: Ramseier
authors.forename: F
authors.initials: F
authors.lastname: Buck
authors.forename: S
authors.initials: S
authors.lastname: Dierauer
mesh_terms: D000293:Adolescent; D001864:Bone Wires; D002648:Child; D004838:Epiphyses / Q000098:blood supply; D004839:Epiphyses, Slipped / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D005270:Femur Head / Q000000981:diagnostic imaging*; D005271:Femur Head Necrosis / Q000000981:diagnostic imaging / Q000209:etiology; D005272:Femur Neck / Q000601:surgery; D005500:Follow-Up Studies; D006621:Hip Joint / Q000601:surgery*; D006801:Humans; D008297:Male; D010027:Osteotomy / Q000009:adverse effects / Q000379:methods*; D010521:Periosteum / Q000293:injuries / Q000601:surgery; D011859:Radiography; D012039:Regional Blood Flow; D012189:Retrospective Studies; D016896:Treatment Outcome