Tibionavicular ligament

Medically reviewed by Healthline Medical Team on April 14, 2015

The tibionavicular ligament is located in the leg and is a part of the deltoid ligament, which is the primary central ligament of the ankle joint. It connects the malleolus, or bony protrusion on the inside of each ankle, to tarsal bones of the foot (bones in the back half of the foot).

The union of the tibiocalcaneal ligament, tibionavicular ligament, and the posterior tibiotalar ligament forms the deltoid ligament. The deltoid ligament has superficial and deep layers. The tibiotalar ligament forms the deep layers while the tibiocalcaneal ligament and the tibionavicular ligament form the superficial layers of the deltoid ligament. The tibiotalar ligament emerges from the middle of the malleolus to cover the entire nonarticular medial side of the talus, commonly known as the ankle bone. The tibiocalcaneal ligament is a thick, dark band that emerges from the middle of the malleolus and inserts into the sustentaculum tali of the calcaneus, or heel bone. Meanwhile, the tibionavicular ligament emerges from the middle of the malleolus and attaches to the tuberosity of the navicular bone, which is responsible for helping maintain the arch of the foot.

CMS Id: 140916