title: Acetabular index values in healthy Turkish children between 6 months and 8 years of age: a cross-sectional radiological study.
abstract: OBJECTIVE
  The aim of this study was to determine the normal acetabular index values in children between 6 months and 8 years of age based on sex, age and side and to define the cutoff values for mild and severe acetabular dysplasia.
  
  
  METHODS
  The records collected from the data pool that was gathered to define the prevalence of untreated congenital hip dislocation in Turkish children between 6 months and 14 years of age was used. The acetabular index was measured on pelvic and abdominal radiographs of children between 6 months and 8 years of age, taken in 19 different cities for non-dysplasia related causes. The distribution of the index values based on age, sex and side.
  
  
  RESULTS
  Thirty-three hips of 21 children (0.75%) out of 2788 children were found to be subluxated or luxated. Acetabular index values of 5534 hips of 2767 children were measured. Acetabular index values of 723 (13%) hips of 493 children (17.8%) were found to be between 1 and 2 standard deviations. Acetabular index values of 147 hips (2.65%) of 118 children (4.3%) were calculated to be above 2 standard deviations. There was a negative correlation between the acetabular index and age.
  
  
  CONCLUSIONS
  The study defines the normal acetabular index values in healthy Turkish children between 6 months and 8 years of age and the expected acetabular index values for mild and severe dysplasia.
authors.affiliation: Department of Orthopaedics and Traumatology International Kent Hospital, İzmir, Turkey. ibrahim.akel@kenthospital.com
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Akel
authors.forename: Murat
authors.initials: M
authors.lastname: Songür
authors.forename: Sevilay
authors.initials: S
authors.lastname: Karahan
authors.forename: Güney
authors.initials: G
authors.lastname: Yilmaz
authors.forename: H Gökhan
authors.initials: HG
authors.lastname: Demirkıran
authors.forename: Yücel
authors.initials: Y
authors.lastname: Tümer
mesh_terms: D000077:Acetabulum / Q000000981:diagnostic imaging*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006618:Hip Dislocation, Congenital / Q000000981:diagnostic imaging / Q000453:epidemiology; D006801:Humans; D007223:Infant; D008297:Male; D011859:Radiography; D012016:Reference Values; D014421:Turkey