Ankle
Ankle
The ankle (/ˈæŋkəl/), also known as the talocrural region, is a region where the foot and the leg meet. The ankle includes three joints: the ankle joint proper or talocrural joint, the subtalar joint, and the inferior tibiofibular joint.
Etymology
The term "ankle" comes from the Old English ancleow, which itself is from Proto-Germanic ankulaz.
Anatomy
The ankle joint is formed by the bones of the leg (tibia and fibula) and the foot (talus). The actual articulation is between the tibia and the talus (tibiotalar joint) but the term ankle joint commonly includes the syndesmosis, which is the connection between the two leg bones.
The subtalar joint is an articulation between the talus and the calcaneus, the heel bone. It allows for movement of the foot relative to the leg in the frontal (coronal) and transverse planes.
The inferior tibiofibular joint is a syndesmosis connecting the two bones of the leg. This is not a direct articulation, but a fibrous joint where the two bones are connected by a ligament.
Related Terms
- Sprained ankle: An injury that occurs when you roll, twist or turn your ankle in an awkward way.
- Ankle impingement: A condition where pain is felt at the front or back of the ankle, due to compression of bony or soft tissue structures during certain movements of the foot.
- Ankle osteoarthritis: A condition that occurs when the cartilage in the ankle joint wears down, causing pain and stiffness.
- Ankle replacement: A surgical procedure to replace the damaged bone and cartilage in the ankle joint.
External links
- Medical encyclopedia article on Ankle
- Wikipedia's article - Ankle
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