Final answer:
The anterior talofibular ligament is assessed using the anterior drawer test of the ankle. This ligament supports the talus at the talocrural joint and resists excess inversion of the foot.
Step-by-step explanation:
The ligament that is assessed using the anterior drawer test of the ankle is the anterior talofibular ligament.
The anterior drawer test is a special test used to evaluate ankle stability and specifically assesses the integrity of the anterior talofibular ligament. This ligament is located on the lateral side of the ankle joint and connects the talus bone to the lateral malleolus of the fibula. It provides support to the talus at the talocrural joint and resists excessive inversion of the foot.
During the anterior drawer test, the examiner immobilizes the leg while holding the foot and ankle. The examiner then applies a forward force to the heel while stabilizing the leg. If there is excessive anterior translation (forward movement) of the talus in relation to the tibia, it indicates a possible injury to the anterior talofibular ligament.