title: MAGNETIC RESONANCE IMAGING FOR DIAGNOSING THE PRE-SLIP STAGE OF THE CONTRALATERAL PROXIMAL FEMORAL EPIPHYSIS IN PATIENTS WITH UNILATERAL EPIPHYSIOLYSIS.
abstract: To assess the importance of using conventional magnetic resonance imaging and T2 mapping to determine the pre-slip stage of the contralateral epiphysis in patients with a clinical and radiographic diagnosis of unilateral proximal femoral epiphysiolysis who were initially treated with in-situ fixation.
  
  
  METHODS
  This prospective clinical study on 11 patients with unilateral epiphysiolysis was conducted between February 2009 and August 2010, using magnetic resonance imaging on the contralateral hip.
  
  
  RESULTS
  We observed abnormalities in the proximal femoral capital physis of the contralateral unaffected hip, with edema under the growth plate in 27% of the patients assessed.
  
  
  CONCLUSIONS
  Magnetic resonance imaging is an early and sensitive method for detecting the pre-slip stage of the proximal femoral epiphysis.
authors.affiliation: PhD. Physician and Professor in the Discipline of Pediatric Orthopedics, Hospital das Clínicas, School of Medicine, University of São Paulo, São Paulo, Brazil.
authors.forename: Nei Botter
authors.initials: NB
authors.lastname: Montenegro
authors.affiliation: Resident Physician in Orthopedics and Traumatology, Orthopedics and Traumatology Service, University of Santo Amaro (UNISA), São Paulo, Brazil.
authors.forename: Victor Fruges
authors.initials: VF
authors.lastname: Junior
authors.affiliation: Resident Physician in Orthopedics and Traumatology, Orthopedics and Traumatology Service, University of Santo Amaro (UNISA), São Paulo, Brazil.
authors.forename: Riccardo
authors.initials: R
authors.lastname: Grinfeld
authors.affiliation: Radiologist and Director of the Radiology Service, Institute of Orthopedics and Traumatology, Hospital das Clínicas, School of Medicine, University of São Paulo, Sao Paulo, Brazil.
authors.forename: Marcelo Bordalo
authors.initials: MB
authors.lastname: Rodrigues
authors.affiliation: Physician and Titular Professor of the Discipline of Orthopedics and Traumatology, University of Santo Amaro (UNISA), São Paulo, Brazil.
authors.forename: Edgard Dos
authors.initials: ED
authors.lastname: Santos Pereira
authors.affiliation: Physician and Coordinator of Residence in Orthopedics and Traumatology, University of Santo Amaro (UNISA), São Paulo, Brazil.
authors.forename: Carlos
authors.initials: C
authors.lastname: Gorios
keywords: Diagnosis; Epiphysis; Magnetic Resonance Imaging; Slipped