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In human anatomy, the subtalar joint, also known as the talocalcaneal joint, is a joint of the foot. It occurs at the meeting point of the talus and the calcaneus. ==Structure== The talus is oriented slightly obliquely on the anterior surface of the calcaneus. There are two points of articulation between the two bones: one anteriorly and one posteriorly: * At the ''anterior talocalcaneal articulation'', a concave area of the talus fits on a convex surface of the calcaneus.〔http://www.physio-pedia.com/images/c/c0/Principles_of_Joint_Mobilization.pdf〕 * The ''posterior talocalcaneal articulation'' is formed by a concave surface of the talus and a convex surface of the calcaneus. The subtalar joint contributes to 10% of dorsiflexion of the ankle. There are three articulating facets between the talus and the calcaneus, delineated as the anterior, middle and posterior facets. The sustentaculum tali forms the floor of middle facet, and the anterior facet articulates with the head of the talus, and sits lateral and congruent to the middle facet. The posterior facet is the largest of the three, and separated from the others by the tarsal canal. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「subtalar joint」の詳細全文を読む スポンサード リンク
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