title: [Preoperative management of hip osteochondritis: comparison of MRI and arthrography with abduction views].
abstract: OBJECTIVE
  Comparison between conventional arthrography and MRI in the preoperative work up of Legg-Calvé-Perthes disease.
  
  
  METHODS
  ans methods. We studied 17 children (18 hips) who had arthrography and MRI (open-magnet configuration) the same day. Coronal and sagittal T1 weighted were realised with the hip in neutral position. Additional coronal T1 weighted with abduction of the hip were obtained. Two readers analysed individually MRI and arthrographic findings: shape of femoral head, index of Heyman (antero-external covering), came effect, recentering of femoral head and quality of examimation.
  
  
  RESULTS
  No statistical difference between MRI and arthrography could be noted-exception made for the index of Heyman.
  
  
  CONCLUSIONS
  MRI can replace arthrography in Legg-Calvé-Perthes disease.
authors: Service de l'unité d'imagerie de l'appareil locomoteur, Institut Calot, Route du Docteur Calot, 62608 Berck sur Mer. corrineboyer@hotmail.com
authors: C
authors: C
authors: Boyer
authors: H
authors: H
authors: Leclet
authors: B
authors: B
authors: Sutter
authors: P
authors: P
authors: Delforge
mesh_terms: D000293:Adolescent; D000886:Anthropometry; D001175:Arthrography / Q000379:methods* / Q000592:standards; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007873:Legg-Calve-Perthes Disease / Q000145:classification / Q000175:diagnosis* / Q000601:surgery*; D008279:Magnetic Resonance Imaging / Q000379:methods* / Q000592:standards; D008297:Male; D011300:Preoperative Care / Q000379:methods*; D011446:Prospective Studies; D012720:Severity of Illness Index