Fig. 3From: Analysis of skeletal characteristics of flat feet using three-dimensional foot scanner and digital footprintGraphical representation of the Chippaux–Smirak and Staheli indices (CSI and SI, respectively). a: interior of the first metatarsal head, b: exterior of the fifth metatarsal. Line (c–d): line of minimal length across the arch parallel to line (a–b). Line e–f: parallel line used to represent the heel widthBack to article page