What type of joint is the talocrural joint?

The talocrural joint, commonly referred to as the ankle joint, is classified as a hinge joint. This type of joint allows movement primarily in one plane, which is flexion and extension. In the case of the talocrural joint, it enables the foot to move up (dorsiflexion) and down (plantarflexion), providing the necessary motion for walking, running, and various activities involving the lower extremities.

The structure of the talocrural joint involves the tibia and fibula in conjunction with the talus bone of the foot. This arrangement offers stability while permitting the range of motion that is characteristic of hinge joints. The design of hinge joints is ideal for the requirements of activities that involve bearing weight and providing support, which is critical for the function of the ankle in human locomotion.