Fig. 11

Radiograph in dp projection showing the changes in foot morphology in a typical Charcot foot patient over time (a baseline, b 10 months later). Note the increase in forefoot abduction relative to the hindfoot: The hindfoot-forefoot angle (yellow curve) is the angle between the longitudinal axis of the 2nd metatarsal bone (yellow line) and the bisection (black dotted line) of another angle (white curve), which is formed by the following two lines: the midline through the talar neck and head and a line parallel to the lateral cortex of the calcaneus (white arrows) [19]