title: [The Ottawa ankle rules: evaluation in a pediatric emergency setting in Mexico].
abstract: BACKGROUND
  Pediatric ankle injuries are a common complaint in the emergency setting. The objective of this study was to prospectively validate the Ottawa ankle rules (OAR) in children in Mexico. This could reduce costs and waiting times in the emergency room.
  
  
  METHODS
  The authors applied the OAR to all patients aged 0 to 18 years old with an acute ankle injury. The main outcome measure was radiograph and/or clinical outcome determined through telephone contact. The presence of fracture was considered an adverse outcome.
  
  
  RESULTS
  One hundred and eleven patients, aged 3-18 years, were enrolled. The prevalence of fractures was 15 %. The sensitivity and negative predictive value of the OAR were 100 %. Use of the OAR would have reduced the radiography rate by 5.4 %.
  
  
  CONCLUSIONS
  The sensitivity and applicability of the OAR in children in Latin-America are confirmed, although reduction in the use of radiography is lower than in other countries.
authors.affiliation: Departamento de Pediatría, Hospital San José-Tec de Monterrey, Escuela de Medicina, Instituto Tecnológico y de Estudios Superiores de Monterrey, Avda. Morones Prieto, 3000 Pte. Col. Doctores, 64710 Monterrey, México. carlos.cuello@itesm.mx
authors.forename: C
authors.initials: C
authors.lastname: Cuello-García
authors.forename: A
authors.initials: A
authors.lastname: Ruiz-Flores
authors.forename: L
authors.initials: L
authors.lastname: Ramos-Gómez
authors.forename: Ma E
authors.initials: ME
authors.lastname: Medina-López
mesh_terms: D000293:Adolescent; D016512:Ankle Injuries / Q000175:diagnosis*; D002170:Canada; D002648:Child; D002675:Child, Preschool; D004636:Emergency Service, Hospital / Q000592:standards*; D050723:Fractures, Bone / Q000000981:diagnostic imaging; D006801:Humans; D008800:Mexico; D017410:Practice Guidelines as Topic; D011237:Predictive Value of Tests; D011859:Radiography / Q000592:standards