The ankle is a complex joint that connects the foot to the lower leg. It is actually comprised of two joints: the true ankle joint (upper ankle joint) and the subtalar joint (lower ankle joint). With compressive forces in each ankle reaching 7 times our body weight while we do nothing more than walk, the ankle joint is required to withstand more stress than any other joint in the body. Our ankles enable bipedalisn (walking upright on two legs) and a normal gait. The upper ankle joint is comprised of 3 bones: the tibia, the fibula, and the talus. The upper ankle joint's range of motion is defined by the malleoli (the bony prominences on each side of the ankle) and the talus.


Ankle
