Tibiospring Ligament Reconstruction in Flexible Progressive Collapsing Foot Deformity.

Stage 1 Progressive Collapsing Foot Deformity (PCFD) presents as a reducible deformity characterized by peritalar subluxation as a result of soft tissue insufficiency leading to clinical and radiographic hindfoot, and ankle deformity. More recently, due to improved understanding and surgical technique, medial soft tissue reconstruction of the tibiospring ligament offers robust correction of the pathologic anatomy in Stage 1 PCFD and can serve as an alternative to indirect, non-anatomic, lateral calcaneal osteotomies.