Peroneal Spastic Flat Foot in Association with Congenital Tarsal Coalition

In the review of 370 cases of flat feet, pronated feet, and painful accessory scaphoids seen in our clinic during these ten years, seven cases of peroneal spastic flat foot with some congeital tarsal coalition were found out.These congenital tarsal coalitions included 2 cases of medial talocalcaneal coaliotin, a case of posterior talocalcaneal coalition, a case of total (anterior, medial and posterior) talocalcaneal coalition, 2 cases of calcaneonavicular coalition, and a case of talonavicular coalition. In the case of total talocalcaneal coalition, skoliosis and a fusion between carpal navicular and trapezium were found coexisted.Follow-up study of these cases clarified the following: incomplete talocalcaneal coalition were more resistant to conservative treatment than complete type, and remained still symptomatic. On the contrary, 2 Cases of incomplete calcaneonavicular coalition and a case of complete talonavicular coalition became asymptomatic with only a few month's conservative treatment.