Tibiocalcaneal ligament

The tibiocalcaneal ligament is one of the four ligaments which make up the deltoid ligament (also known as the medial collateral ligament). The deltoid ligament is the joint of the human ankle which visibly protrudes from the lower leg. Of these four ligaments, one is a deep fibre and three are superficial. The tibiocalcaneal ligament is one of the superficial fibres. The other ligaments are the anterior tibiotalar ligament, the posterior tibiotalar ligament, and tibionavicular ligament. The purpose of these ligaments is to provide stability in the hindfoot. The tibiocalcaneal ligament runs between the medial malleolus to the sustentaculum tali of the calcaneus (heel bone). This ligament is a small band of similar fibres which run parallel to the posterior tibiotalar ligament (deep layer of of the deltoid ligament). When sports injury doctors investigate which ligaments tear during sports injuries involving the ankle the tibiocalacaneal ligament is torn 65 percent of the time. It is exceeded only by the tibionavicular ligament, which is torn 69 percent of the time.
Written and medically reviewed by the Healthline Editorial Team
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In Depth: Tibiocalcaneal ligament

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