Summer Session II; Anatomy; Lecture 17; part II; Ankle Joint

• Articulation of the tibia and fiubla with the talus
• Synovial-hinge type
• It is more stable in dorsiflexion than plantar flexion due to a wider talus bone anteriorly than posteriorly.

three ligaments that attach the lateral malleollus to the talus and calcaneous.

• Anterior talofibular ligament- runs from the lateral malleolus to the neck of the talus.
• Posterior talofibular ligament-runs from the lateral malleolus to the lateral tubercle of the posterior process of the talus.
• Calcaneofibular ligament- runs from the lateral malleolus to the lateral surface of the calcaneuous.
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• Deltoid;
• It consists of four parts that attaches the medial malleolus to the talus, calcaneuous and navicular. The parts are named for their bony attachments.
• Anterior tibiotalar ligament
• Posterior tibiotalar ligament
• Tibionavicular ligament
• Tibiocalcaneal ligament
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• Anterior and posterior tibial arteries
• Tibial nerve and deep peroneal nerve.

• Articulation of the talus and the calcaneuous. Yes;
• Permits inversion and eversion of the foot.
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• Midtarsal joint.
• Talocalcaneonavicular and calceocuboid joint.
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• Synovial ball and socket joint
• plantar calcaneonavicular ligament; spring ligament
• Band that extends from the sustentaculum tali to the posterior surface of the navicular bone;
• It plays an important role in maintaing the longitudnal arch of the foot. fyi. The plantar aponeurosis also helps with the longitunal arch of the foot.
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Long plantar ligament-plantar surface of the calcaneous to the cuboid and 2,3,4th metatarsal heads. It forms a tunnel for passing tendons and helps support the longitudinal arch of the foot.

• Short plantar ligament (plantar calcaneocuboid ligament)- Plantar surface of the calcaneuous to the cuboid. Assists with the longitudinal arch and joint support.
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• Plantar aponeurosis
• Plantar calcaneonavicular ligament (spring ligament)
• Long plantar ligament
• Short plantar ligament (plantar calcaneocuboid ligament)

• Dorsal talonavicular ligament
• Bifurcated ligaments- Calcaneocuboid and calcaneonavicular