[Tarsal coalitions: a rare differential diagnosis of congenital clubfoot].

The Ponseti method has proven to be successful in the treatment of idiopathic congenital talipes equinovarus (clubfoot). In particular, if plaster cast treatment as recommended by Ponseti does not show the desired correction of the foot, tarsal coalitions as a rare cause for a secondary clubfoot deformity have to be ruled out. In these cases a surgical release of the coalition in addition to the tenotomy has to be performed to achieve a satisfactory correction.