Tarsal tunnel syndrome - a complex of symptoms resulting from compression of the posterior tibial nerve or of the plantar nerves in the tarsal tunnel, with pain, numbness, and tingling paresthesia of the sole of the foot.
Tarsoclasis - surgical fracture of the tarsus of the foot.
Tarsus - the seven bones composing the articulation between the foot and leg, including the talus, calcaneus, navicular bone, cuboid bone, and medial, intermediate, and lateral cuneiform bones.
Tetradactyly - the presence of four digits on the hand or foot.
Thomas heel - a shoe correction consisting of a heel one half inch longer and an eighth to a sixth of an inch higher on the inside; used to bring the heel of the foot into varus and to prevent depression in the region of the head of the talus.
Trench foot - a condition of the feet resembling "frostbite, " frostbite, due to the prolonged action of water on the skin combined with circulatory disturbance due to cold and inaction.
Tridactylism - the presence of only three digits on the hand or foot.
Tripier's amputation - amputation of the foot through the calcaneus.
Two-point gait - that in which the right foot and left "crutch" crutch or cane are advanced together, and then the left foot and right crutch.