Final answer:
The tibiotalar joint is the ankle joint, involving the talus and malleoli of the tibia and fibula, and it primarily allows dorsiflexion and plantar flexion. Injuries like inversion ankle sprains and high ankle sprains commonly result from sports, falls, or trauma. The anterior talofibular and calcaneofibular ligaments are often damaged in such injuries.
Step-by-step explanation:
The tibiotalar joint, often referred to as the ankle joint, comprises the articulation between the talus bone and the surrounding malleoli of the tibia and fibula. This h`inge joint primarily facilitates dorsiflexion and plantar flexion of the foot.
Common injuries to the tibiotalar joint include inversion ankle sprains where the talus bone tilts laterally, damaging ligaments on the lateral side of the ankle. The anterior talofibular ligament is usually affected first, followed by the calcaneofibular ligament. Severe inversions can also fracture the distal fibula.
Injuries such as syndesmotic ankle sprains, or "high ankle sprains," result from lateral twisting of the leg, affecting the tibiofibular ligaments. Activities that might cause these injuries include sports with sudden changes in direction, falling awkwardly, or trauma to the leg in an automobile accident. Prompt medical attention is essential to avoid chronic instability or further injury.