The posterior tibiofibular ligament is a fibrous band of connective tissue that travels horizontally over the rear floor of the tibiofibular syndesmosis, which is a gathering space of the fibula (calf bone) and the tibia (shinbone) that’s composed of the interosseus membrane and each the interosseous and anterior ligaments.
One of many main capabilities of the tibiofibular ligament is to make up the again ‘wall’ space of the recipient socket for the talar trochlea of the ankle. The trochlea is a fibrous construction that’s formed equally to a pulley.
The posterior tibiofibular ligament is a part of the lateral malleolus, which is likely one of the fibula bone’s sharp and bony decrease extremities close to the ankles. It’s considerably smaller in dimension than the lateral malleolus’ anterior ligament, which is flat and triangular in form. One other widespread identify for the ligament is the posterior inferior ligament.