Flexibility of idiopathic congenital clubfeet treated by posteromedial release without talocalcaneal joint release.

We retrospectively reviewed 57 patients with 84 idiopathic clubfeet and followed them up for at least 15 years. All feet were rated as good or excellent according to the International Clubfoot Study Group score. Stress radiographs showed that the arc of forefoot motion of conservatively treated feet was 81%, in operated feet of patients aged more than 1 year it was 74%, and in feet of patients aged less than 1 year during surgery it was 65%, compared with those in contralateral normal feet. Despite the severity of the deformity, feet treated by our posteromedial release without talocalcaneal joint release were flexible and functional.