There are 3 groups of ligaments in the ankle area:

externally, the joint is fixed by the calcaneofibular and talofibular joints, in which the anterior and posterior compartments are distinguished;
along the inner surface there is a delta-shaped ligament, in which a deep and superficial compartment is distinguished;
tibiofibular ligament, which connects the fibula and tibia.
The most common injury is the lateral ligament. In second place in terms of frequency of occurrence is the right or left deltoid ligament. The third place, as a rule, is damage to the tibiofibular syndesmosis. Other structures are injured much less frequently.