EASY Algorithm Trial (Elbow Trauma Assessment Using Sonography in Children and Youth) Diagnostic Accuracy and Safety of Point-of-care Ultrasound as a Screening Tool for Suspected Elbow Fractures in Children Aged 5 to 15 Years: a Multicenter Prospective Cohort Study

Exclusion Criteria

• •elbow trauma as part of a polytrauma,
• •parents' insufficient German language skills (spoken or written),
• •trauma more than 72 hours ago,
• •presentation at the emergency room with current, post-traumatic external X-ray images of the affected elbow joint from another clinic or practice,
• •open fracture of the affected elbow joint,
• •skin avulsion of the affected elbow joint,
• •visible deformity of the affected elbow joint,
• •and pathological status of peripheral circulation, motor function, and/or sensitivity.