[Treatment of recurrent clubfoot and residual deformities after congenital clubfoot]. 
Relapse and residual deformity after treatment of congenital clubfoot are common problems.  Recurrences occur in up to 48 % of cases after successful initial treatment using Ponseti's technique.  By casting and anterior tibial tendon transfer as recommended by Ponseti a flexible and well functioning foot can be achieved in most cases.  Neglected clubfoot remains a demanding challenge.  Depending on the severity of the deformity, the impairment of function and patient age, conservative and/or different operative treatment options can be considered.  Manipulation and casting according to Ponseti is also recommended in toddlers with relapses even after peritalar joint release.  Thus the need and extent of operative treatment can be reduced.  Additional osteotomy may be indicated in more rigid feet and older children.  An accurate evaluation of the existing deformity and functional impairment is mandatory for the individual choice of treatment.  The number of previous operative procedures reduces the amount of improvement and mobility of the foot.  Therefore, the best and most efficient treatment for recurrent clubfoot is prevention in the form of consistent primary treatment, consistently wearing braces and regular follow-up examinations.