ArticleJournal of foot and ankle research2026
An Exploratory Statistical Shape Modeling Analysis of Three-Dimensional Foot Alignment in Female Patients With Progressive Collapsing Foot Deformity.
Article in Journal of foot and ankle research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- An Exploratory Statistical Shape Modeling Analysis of Three-Dimensional Foot Alignment in Female Patients With Progressive Collapsing Foot Deformity.Journal of foot and ankle research · 2026Article
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7 authors.
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Abstract
introductionProgressive collapsing foot deformity (PCFD) is a complex condition characterized by multiple combined deformities, with a higher reported prevalence in women. Most studies of PCFD morphology have focused on single joints and evaluated both sexes together, leaving the interrelationship of multiple joints in females specifically unassessed. In this study, we developed a multi-domain statistical shape model (SSM) from reconstructions of simulated weight-bearing computed tomography (SW-CT) image data to investigate variations in 3D foot alignment in women by comparing the morphology of patients with PCFD to that of their asymptomatic control counterparts.
methodsWe developed an SSM to analyze the 3D alignment in the foot, including the distal tibia, distal fibula, talus, calcaneus, navicular, cuboid, and each of the cuneiforms and metatarsal bones. Model results were compared between 23 female patients with PCFD and 23 female asymptomatic individuals.
resultsAlthough the Chopart, subtalar, and Lisfranc joints were dorsiflexed and abducted, the Chopart and subtalar joints were inverted whereas the Lisfranc joint was everted, indicating that deformity of the Lisfranc joint occurred in the opposite direction to that of the subtalar and Chopart joints.
conclusionsThe 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.
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