Figure 2.

(a) Medial coronal dual view in a normal foot. There is normal divergence of the talo-calcaneal angle (Ta-C) with a normal long axis of the talus oriented toward the 1^st metatarsal and the calcaneus oriented toward the fifth metatarsal (blue dotted lines). (b) Medial coronal dual view in a clubfoot. Although the long axis of the calcaneus is oriented lateral to the fifth metatarsal, the talo-calcaneal divergence is decreased. This is due to the long axis of the talus being oriented proportionally further lateral than that of the calcaneus (dotted blue lines).