Fig. 3From: Validity of a simple footprint assessment board for diagnosing the severity of flatfoot: a prospective cohort studyThe methodology of measuring the longitudinal arch length and navicular height with 3DCT imaging (A), tibiocalcaneal angle with coronal CT image (B), and calcaneal inclination angle with sagittal CT image (C). A. a: The length of the longitudinal arch. b: The navicular height. B. c: The axis of the distal tibia. d: A line of the medial calcaneal contour. White arrow: The posterior tibial cortex. C. e: The plantar line. f: The most inferior point of the calcaneal tuberosity and the inferior edge of the anterior process of the calcaneusBack to article page