Narrative review of the management of a relapsed clubfoot.

The management of idiopathic clubfoot has transformed over the past several decades as the Ponseti method for the correction of this deformity became the standard of care, and surgical release has almost all but been abandoned. The Ponseti method has shown very high initial success rate and excellent long-term functional results. Relapse of the deformity, however, continues to be a major problem, occurring in up to 40% of patient, and there is no consensus on the definition and management of the relapsed clubfoot. This review discusses the available management options for the treatment of a relapsed clubfoot deformity following initial treatment with the Ponseti method [including repeat casting, tendo-Achilles lengthening, plantar fascia release, and tibialis anterior tendon transfer (TATT)] as well as following initial surgical treatment with posteromedial release (including casting, hemiepiphysiodesis, revised posteromedial release, osteotomies, fusion, and the use of gradual distraction with external fixators). These are discussed from the least to the most invasive. Available evidence, and limitations of the literature, for the management of relapses following both the Ponseti method and initial surgical release is reviewed along with along with the reported outcomes. Future efforts should be geared towards standardizing the definition of a relapse with objective criteria for its management.