Calcaneocavus foot deformity

Calcaneocavus foot deformity in a teenager with S1 level myelomeningocele.

(A) This photograph of the medial foot shows exaggerated arch height across the entire midfoot. Though not visible in this photo, the hindfoot-subtalar joint is in neutral alignment (without varus or valgus deformity). The soft tissues under the MT heads and the calcaneus are thick and callused.

(B) A standing lateral radiograph of the foot shows trans-tarsal cavus with relative parallelism of all the metatarsals. Hyperdorsiflexion of the calcaneus with a "pistol-grip" deformity is apparent.