anterior talocalcaneal ligament anterior talocalcaneal ligament the anterior talocalcaneal ligament (anterior calcaneo-astragaloid ligament or anterior interosseous ligament) is a ligament in the foot. anterior talocalcaneal ligamentcapsule of left talocrura articulation (distended). lateral aspect.subtalar and talocalcaneonavicular articulations exposed from above by removing the talusdetailsfromneck of the talustosuperior surface of the calcaneusidentifierslatinligamentum talocalcaneum anteriusta21929anatomical terminology the anterior talocalcaneal ligament extends from the front and lateral surface of the neck of the talus to the sinus tarsi of the calcaneus. it forms the posterior boundary of the talocalcaneonavicular joint.