These bones create the two major foot joints - the subtalar and midtarsal joints - that allow complex motions to occur in the feet.
The subtalar joint can also be considered a combination of the anatomic subtalar joint discussed above, and also the talocalcaneal part of the talocalcaneonavicular joint.
The correction takes place through the normal arc of the subtalar joint.
The human transverse tarsal joint of the midfoot transmits forces from the subtalar joint in the hindfoot to the forefoot joints (metatarsophalangeal and interphalangeal) and associated bones (metatarsals and phalanges).
Extrarticular fractures are less common, and located anywhere outside the subtalar joint.
Average subtalar motion is 20-30 degrees inversion and 5-10 degrees eversion.
The foot is adducted and planter-flexed at the subtalar joint, and the goal is to abduct the foot and dorsiflex it.
The subtalar joint contributes to 10% of dorsiflexion of the ankle.
