The ankle/foot complex is structurally analogous to the wrist-hand complex of the upper extremity but has a number of distinct differences to optimize its primary role to bear weight. The complementing structures of the foot allow the foot to sustain large weight-bearing. the bones of the foot are traditionally divided into three functional segments. These are the hindfoot (posterior segment), composed of the talus and calcaneus ; the midfoot (middle segment) , composed of the navicular, cuboid, and three cuneiform bones ; and the forefoot (anterior segment) , composed of the metatarsals and the phalanges. These terms are commonly used in descriptions of ankle or foot dysfunction or deformity and are similarly useful in understanding normal ankle and foot function. The three motions of the ankle/foot complex that approximate cardinal planes and axes are dorsiflexion/ plantarflexion, inversion/eversion, and abduction/adduction. Dorsiflexion and plantarflexion are motions that occur...