title: Slipped capital femoral epiphysis:  reduction as a risk factor for avascular necrosis.
abstract: Complication rates after the treatment of slipped capital femoral epiphysis (SCFE) were retrospectively evaluated to identify possible risk factors. Twenty-six patients with SCFE underwent reduction and fixation with a single screw or multiple wires. The prevalence of avascular necrosis (AVN) of the hip or chondrolysis was 14.8 and 3.6%, respectively. The degree of SCFE (P=0.050) and reduction before the seventh day after the slip (P=0.028) were associated with AVN. The risk factors for AVN were found to be a higher grade of SCFE correction and reduction between the second and the seventh day after SCFE.
authors.affiliation: Department of Orthopaedics and Traumatology, Pediatrics Division, Faculty of Medical Sciences, Santa Casa de Misericórdia de São Paulo (SCMSP), São Paulo, SP, Brazil.
authors.forename: Eduardo
authors.initials: E
authors.lastname: Rached
authors.forename: Miguel
authors.initials: M
authors.lastname: Akkari
authors.forename: Susana Reis
authors.initials: SR
authors.lastname: Braga
authors.forename: Maria Fernanda
authors.initials: MF
authors.lastname: Minutti
authors.forename: Cláudio
authors.initials: C
authors.lastname: Santili
mesh_terms: D000293:Adolescent; D001863:Bone Screws; D002648:Child; D005260:Female; D005271:Femur Head Necrosis / Q000209:etiology* / Q000473:pathology; D006801:Humans; D008297:Male; D011183:Postoperative Complications; D012189:Retrospective Studies; D012307:Risk Factors; D060048:Slipped Capital Femoral Epiphyses / Q000601:surgery*; D016896:Treatment Outcome