Flat Feet Quiz Medscape

Description: Tarsal coalition is also sometimes referred to as peroneal spastic flatfoot. It is almost always a congenital anomaly in which there is a lack of segmentation involving the bones of the foot. The form of tarsal coalition presented here, Calcaneonavicular coalition, is the most frequent type, being found in approximately 60% of cases. Talocalcaneal coalition is the second most frequent type. Males are afflicted more frequently than women, and findings of bilateral coalition are not uncommon, being present in up to 25% of cases.
Appl Radiol Online 3(1), 2004. Posted 02/17/2004 Kevin E Snyder, M.D.