Weightbearing Radiographic Predictors of Middle Facet Subluxation in Progressive Collapsing Foot Deformity

TNC angle and HMA are the most useful WBR measurements for identifying MFS in PCFD. In settings without WBCT access, these offer a practical assessment tool, associated with MFS ≥18%; however, these cutoffs accounted for only 27.3% of variance (<i>R</i>² = 0.273), underscoring residual unexplained factors.