Acquired : Current Concepts - "From Adult Acquired to Progressive Collapsing Foot Deformity".

The clinical disorder traditionally known as or has been the subject of several publications over the past two decades. Now, it is understood that the problem does not lie in the posterior tibial tendon per se and may even occur without tendon injury. Studies have brought new concepts and understanding that question the views on this subject, culminating in the replacement of existing classifications with one that is more assertive and discriminative of the potential presentation patterns of the deformity. In addition, a change in the name of the disorder to (PCFD) has been proposed. Regarding surgical treatment, the concept of an approach persists, emphasizing axis realignment through osteotomies, arthrodeses, and soft tissue balancing, which consists of tendon transpositions/repairs and reconstruction of ligament structures, especially the deltoid ligament complex and the spring ligament.