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Anterior tibiofibular
14%
164/1163
Posterior tibiofibular
1%
10/1163
Anterior talofibular
77%
899/1163
Calcaneofibular
6%
73/1163
Posterior talofibular
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The lateral ankle is stabilized by the anterior talofibular, calcaneofibular, and posterior talofibular ligaments. With the ankle in neutral flexion, the anterior talofibular ligament is perpendicular to the long axis of the tibia. However, with ankle plantar flexion, this ligament becomes more parallel to the tibia and is at risk with an inversion sprain that most commonly occurs with the ankle in a plantar flexed position. The calcaneofibular ligament is parallel to the tibia in neutral ankle flexion and is usually injured when the ankle is inverted in this neutral position. The posterior talofibular ligament is only injured in severe sprains that also disrupt the other two lateral ligaments. The anterior tibiofibular and posterior tibiofibular ligaments contribute to the ankle syndesmosis and are most commonly injured with ankle eversion and external rotation.
3.5
(8)
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