Diagnosis of Chondral Injury After Supination Trauma

Ankle injuries caused by forced supination are the most common injuries affecting the foot and ankle. Recent investigation revealed that an osteochondral lesion (OCL) of the ankle is an increasingly common injury following the common ankle sprain [ 22 ]. Berndt and Harty reported on possible mechanisms for the occurrence of OCL on the talar dome after supinating ankle trauma. They reported two predilection sites, the lateral and medial side [ 3 ]. According to their report, an ankle positioned in inversion and dorsifl exion predisposes for an OCL on the lateral side, while medial lesions occur mostly with the ankle positioned in inversion and plantar fl exion [ 3 ]. They also reported that 57 % of OCL to the talar dome were located medially and 43 % laterally [ 3 ].