Tags: Anatomical Structure, Bone.
At the upper and forepart of the medial surface of the calcaneus there is a horizontal eminence the sustentaculum tali (alternatively the talar shelf) which gives attachment to the plantar calcaneo-navicular (spring) ligament tibiocalcaneal ligament and medial talocalcaneal ligament.This eminence is concave above and articulates with the middle calcaneal articular surface of the talus; below it is grooved for the tendon of the Flexor hallucis longus; its anterior margin gives attachment to the plantar calcaneonavicular ligament and its medial margin to a part of the deltoid ligament of the ankle-joint.