ANKLE TRAUMA Diagnostic Value of Ultrasound Compared to Standard Radiography in the Detection of Fractures

Inclusion Criteria: Any adult patient with acute ankle trauma \+ one or more criteria of the Ottawa ankle rules : * Inability to walk 4 steps immediately after the trauma or in the emergency room, * pain at the level of the internal or external malleolus (the distal 6 cm) or the base of the 5th metatarsal bone. Exclusion Criteria: * Any patient under the age of 18 years * Any patient unable to sign the informed consent * Skin lesions contraindicating sonography (e.g. open fracture wound, … ) * An unstable patient whose inclusion in the study would delay vital treatment