Bones, Joints and Ligaments
The Ankle comprises of 4 bones, 3 Joints and several Ligaments.
The Bones are:
- Tibia (Shin Bone)
- Fibula (Smaller Shin Bone)
- Talus, and
- Calcaneus (Heel Bone)
- The Inferior (Lower) TibioFibular Joint – the joint between both shin bones
- Talocrural – the joint where both shin bones enclose over the top of the Talus
- Subtalar – Between the Talus and the Calcaneus
- Lateral Collateral (outside) – consisting of 3 individual ligaments:
- Anterior TaloFibular Ligament (ATFL),
- CalcaneoFibular Ligament (CFL),
- Posterior TaloFibular Ligament (PTFL)
- Medial Collateral (inside) – Also called Deltoid Ligament due to its fan shape
The Joints are:
The Ligaments are:
Movements and Function
The primary movements in the Talocrural Joint is Dorsi-Flexion (Upward) and Plantar-Flexion (Downward) movement of the Ankle.
The primary movements in the Subtalar Joint is Eversion (Pronation) and Inversion (Supination) of the Ankle
Ankle Anatomy 101
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