Syndesmosis Injuries to the Ankle
The syndesmotic ligament connects the two bones of the leg; this is often referred to as the ankle sydesmosis, or just syndesmosis. These bones, the tibia, and fibula are between the knee and ankle joints. The tibia is the larger shin bone that supports most of the weight of the body, and the fibula is the smaller bone on the outside of the leg.
Source: Verywell Health