An Exploratory Statistical Shape Modeling Analysis of Three‐Dimensional Foot Alignment in Female Patients With Progressive Collapsing Foot Deformity

The application of a multi-domain SSM from SW-CT to evaluate alignment deformities in patients with PCFD represents a new and novel approach to understanding the pathophysiology of this condition. In PCFD, the subtalar and Chopart joints showed coordinated changes, whereas the Lisfranc joint demonstrated variation in the opposite direction. Also, the talonavicular joint spreads out medially in a fan-like direction in PCFD.