Juvenile Tillaux fracture with disrupted anteroinferior tibiofibular ligament: a case report.

The juvenile Tillaux fracture is an avulsion fracture of the anterolateral corner of the distal tibial epiphysis. This type of fracture occurs when the anteroinferior tibiofibular ligament, with the foot position of supination-eversion or external rotation, avulses an epiphyseal fragment. Therefore, the anteroinferior tibiofibular ligament plays an important role in this injury, and usually remains intact. Here, we present a case in which the distal epiphyseal fragment was severely displaced and inverted, and the anteroinferior tibiofibular ligament was totally disrupted.