ED point-of-care ultrasound in the diagnosis of ankle fractures in children.

In pediatric ankle injury, radiography is the current standard used to differentiate fracture from ligamentous injury; however, the associated cost, increased time, and radiation exposure pose a significant downside to this imaging modality. Point-of-care ultrasound may be an attractive alternative in this setting, as illustrated by this patient case. A 14-year-old boy presented to the emergency department with a left ankle inversion injury sustained while playing soccer. An emergency physician performed ultrasound examination that revealed findings consistent with a nondisplaced Salter-Harris I fracture of the distal fibula. The results of a formal radiograph confirmed this diagnosis. This case report presents the successful use of point-of-care ultrasound for detection of a Salter-Harris I ankle fracture, describes a stepwise approach for this new diagnostic technique in detail, and discusses its value in the setting of pediatric ankle injury.