Metatarsal Pronation on Radiographs: A Prospective Reliability Study of Visual Rotation Markers in Hallux Valgus.

ABSTRACT:

Background

Rotational malalignment of the first metatarsal is increasingly recognized as a key feature of hallux valgus deformity, but the reliability of radiographic rotation markers remains uncertain. This study assessed the inter- and intraobserver reliability of 4 commonly used radiographic parameters: metatarsal pronation angle (MPA), tibial sesamoid position (TSP), lateral head shape (LHS), and round head sign (RH).

Methods

In this prospective reliability study, 3 senior clinicians independently evaluated weightbearing anteroposterior and axial sesamoid radiographs of 75 hallux valgus cases on 2 occasions. Metatarsal pronation angle (MPA) was measured as a continuous variable and analyzed using intraclass correlation coefficients (ICCs). Tibial sesamoid position (TSP),

SUBMITTER: Hamre ME 

PROVIDER: S-EPMC12450261 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature