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Radiographic changes in the hip joint in children suffering from Perthes disease.

Abstract
The purpose was to compare radiographic parameters with a sex-matched and age-matched control group at the onset of disease and at skeletal maturity. The study comprised 143 patients with Legg-Calvé-Perthes disease, treated using a Thomas splint. Wiberg's centre-edge angle and the acetabular index angle were applied. The age at diagnosis was 6.6 years with no difference between boys and girls. At the time of diagnosis, the centre-edge angle was decreased from 18° in the control group to 10° in the affected hip. The age at follow-up was 16 (SD 2) years for the boys and 15 (SD 3) years for the girls. At the time of skeletal maturity, the centre-edge angle was decreased and the acetabular index angle increased in the affected hip and the nonaffected hip in Stulberg class III/IV/V hips compared with the control group. Initially radiographic changes only occur on the affected hip. At skeletal maturity both hips show radiographic changes.
AuthorsLonnie Froberg, Finn Christensen, Niels Wisbech Pedersen, Søren Overgaard
JournalJournal of pediatric orthopedics. Part B (J Pediatr Orthop B) Vol. 21 Issue 3 Pg. 220-5 (May 2012) ISSN: 1473-5865 [Electronic] United States
PMID22186707 (Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)
Topics
  • Acetabulum (growth & development, pathology, surgery)
  • Bone Development (physiology)
  • Child
  • Female
  • Hip Joint (diagnostic imaging, pathology, surgery)
  • Humans
  • Legg-Calve-Perthes Disease (diagnostic imaging, pathology, surgery)
  • Male
  • Radiography
  • Splints

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