The ankle joint, also known as the talocrural joint, is formed by the articulation of the distal tibia, distal fibula, and talus. It allows hinge-like movement of dorsiflexion and plantarflexion. The ankle joint is stabilized medially by the medial collateral ligament and laterally by the lateral collateral ligament, each of which have multiple parts attaching to the talus, calcaneus, and navicular. The tibia and fibula are also held together at the ankle by the anterior and posterior tibiofibular ligaments.
33. Lateral Collateral Ligament
Lateral View Ankle Joint
Has three discrete parts
- Anterior Talofibular
- Calcaneofibular
- Posterior Talofibular
34. Lateral Collateral Ligament
Lateral View Ankle Joint
Has three discrete parts
- Anterior Talofibular
- Calcaneofibular
- Posterior Talofibular
35. Both Collateral Ligaments have 3 sets of fibres running from
Tibia or Fibula to
- Anterior Talus
- Posterior Talus
- Calcaneum
Medial Collateral Ligament also has fibres from
Tibia to Navicular
Summary of Collateral Ligaments
42. Dorsiflexion
The ankle is a hinge joint and permits
movement in one plane around a single axis
Dorsiflexion is when
the foot is moved
upwards away from
the ground