title: Importance of Herrings classification in predicting the outcome of aseptic necrosis of the femoral head.
abstract: OBJECTIVE
  To highlight the importance of values of the ​​Herring's classification in the treatment planning of Legg-Calve-Perthes disease (LCPD).
  
  
  METHODS
  The charts of 14 patients in a period of 4 years (2004-2008) were retrospectively reviewed. Inclusion criteria was unilateral LCPD and contralateral healthy hip. The patients were divided into three Herring groups according to radiographic images (A, B and C). For all patients the acetabulum/head index (AHI) was determined.
  
  
  RESULTS
  The youngest patient was 4.9 years and the oldest 9.11 years; male patients were dominant (male:female 11:3). The right hip side was more affected comparing to the left one (8:6). The distribution of patients in Herring groups was three in the Group A, six in the Group B and five patients in the Group C. The AHI index was lowest in the group C. Patients in the group C were treated surgically.
  
  
  CONCLUSIONS
  Herrings classification predicts patients with extensive changes and suggests what kind of treatment should be applied.
authors: Clinic for Orthopedics and Traumatology, Podgorica, Montenegro.
authors: Žarko
authors: Ž
authors: Dašić
authors: Clinic for Orthopedics and Traumatology, Podgorica, Montenegro.
authors: Miroslav
authors: M
authors: Kezunović
authors: Clinic for Orthopedics and Traumatology, Podgorica, Montenegro.
authors: Goran
authors: G
authors: Pešić
authors: Center for Physical Medicine and Rehabilitation, Clinical Center Podgorica, Podgorica, Montenegro.
authors: Vesna
authors: V
authors: Bokan
authors: Montenegro Ministry of Health; Podgorica, Montenegro.
authors: Mira
authors: M
authors: Jovanovski
mesh_terms: D002648:Child; D002675:Child, Preschool; D019468:Disease Management; D005260:Female; D006801:Humans; D007873:Legg-Calve-Perthes Disease / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000628:therapy; D008297:Male; D012189:Retrospective Studies