Some examples are given in order to describe the combined lesion of the ankle joint in the growing skeleton after a supination trauma. This lesion in the growing skeleton is similar to the basic type A of luxation fractures according to Weber[4]: lateral ligament rupture or lysis of the fibular zone of bone growth, respectively, combined with fracture of the medial malleolus and involvement of the tibial zone of bone growth. In some cases, anteroposterior radiographs are necessary in order to establish a complete diagnosis. The pictures should always be compared with those of the uninjured side. Skeletal dysplasia as well as joint instability can be avoided by a differentiated therapy depending on the initial findings.