Figure 2
Hindfoot alignment view. The ankle joint and the middle and posterior subtalar facets are visualised clearly. A shows the axis of the tibia. B shows the surface of the distal tibia, and C shows the surface of the proximal talus. D shows the line from the top of the sustentaculum tali to the lateral-inferior end of the posterior facet of the calcaneus. E shows the horizontal line through the contact point of the heel. F shows the line from the cross point of A and C to the contact point of the heel.