Subtalar joint
The subtalar joint, articulatio subtalaris, is formed by the posterior talus articular surface of the calcaneus, ficies articularis talaris posterior calcanei, and the posterior calcaneus articular surface of the talus, ficies articularis calcanea posterior tali.
The joint capsule is slightly stretched, for a long time it is attached along the edge of the articular cartilages and only in front, on the talus bone, and behind, on the heel, somewhat retreats from the edge of the articular surfaces.
The ligaments that strengthen this joint include:
1. The interosseous talon-calcane ligament, lig. Talocalcaneum interosseum laterale, is located in the axillary sinus, attached at its ends in the grooves of the talus and heel bone.
2. Lateral calcaneal ligament, lig. Talocalcaneum laterale, stretched between the upper surface of the collar of the talus and the lateral surface of the calcaneus.
3. Medial talon calcane ligament, lig. Talocalcaneum mediale, goes from the posterior process of the talus to the supporting process of the heel bone.
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