The ankle joint is located at the junction of the leg and the foot. It is made up of three bones: the tibia, the fibula and the talus. The ankle joint allows the foot to dorsiflex (point the foot up) and plantarflex (point the foot down). Normal ankle motion is part of the lower extremity joint complex that provides for shock absorption and energy conservation while standing and walking.
Ankle arthritis is the progressive loss of the smooth gliding surface that lines the ends of the bones that form the ankle. This produces pain, stiffness, swelling and warmth at the joint. These detrimental effects lead to reduced comfort and endurance for standing and walking activities.