Ottawa Ankle Rules: A Reliable Clinical Instrument to Detect Fractures in Children and Adolescents.

 To evaluate the accuracy of the Ottawa Ankle Rules (OARs) applied to the medical records of a high-complexity hospital and a private clinic and to analyze their clinical utility in subjects aged 16 or younger.  The present is a cross-sectional, analytical observational study with secondary data collected from an orthopedic emergency department and a private orthopedic clinic. The sample consisted of 144 subjects, including all patients with ankle torsion episodes who underwent ankle and/or foot radiographs upon admission.