[Diagnosis and therapy of fibular ligament injuries in the ankle joint in children].

Turn fibular ligaments of the ankle go often undetected when not accompanied by osseous lesions. The significance of injuries to the major supporting ligaments of the ankle is underestimated in children. Next to the clinical findings stress radiographs of the ankle joint in two projections are mandatory. Measurements of anterior and lateral displacement under stress and displacement index need to be compared with the healthy ankle. Diagnosis of a fibular ligament rupture is based on clinical findings and on differences between the measurement results (injured compared to healthy) by way of three different techniques. Rupture of a fibular ligament is an absolute indication for surgery--even in children.