Unique transchondral fracture of the talus.

Since Berndt and Harty first reported and classified transchondral fractures of the talar dome in 1959, many additional cases have been reported in the literature. In each case, the lesion was reported to be one of two types, a shallow fragment located anterolaterally, or a deep fragment located posteromedially. The authors present a case of an unusual finding of a transchondral talar dome fracture that is unlike the previously reported cases.