Anatomy, Range of Motion and Neutral Position of the Subtalar Joint The talus and calcaneus make up the two bones of the subtalar joint (STJ), otherwise known as the talo-calcaneal joint. The STJ consists of three articular facets, the posterior, middle and anterior facets. The two physiologic motions of the STJ are supination and pronation. During STJ supination, the talus glides posterior-superiorly on the posterior facet of the calcaneus. During STJ pronation, the talus glides anterior-inferi

Subtalar Joint Axis Rotational and Translational Motions During Closed Kinetic Chain Pronation and Supination - Sagittal Plane Motion In this three dimensional animation of the medial view of the weightbearing foot skeleton during closed kinetic chain subtalar joint (STJ) pronation and supination, the STJ axis is noted to undergo plantarflexion during pronation and dorsiflexion during supination. As the talus plantarflexes during STJ pronation, note how the STJ axis plantarflexes along with the

Basic anatomy of Subtalar Joint and Foot The subtalar joint (talocalcaneal joint) is vital for hindfoot stability and mobility. Posterior facet: largest, best seen on lateral radiographs and CT Middle facet: on the sustentaculum tali, may communicate with the talonavicular joint Anterior facet: smallest, may merge with the middle facet Imaging pearls: Sustentaculum tali appears brick-shaped on lateral X-ray Anterior calcaneal process should not articulate with the navicular—if it does, think coa

This is a self-mobilization for the subtalar joint! The subtalar joint is formed where your heel bone, or the calcaneus, meets the talus, which is the ankle bone between your heel and your shin. The subtalar joint allows for us to move our heel out (eversion) and in (inversion). Inversion and eversion of the ankle are KEY for normal walking and running. With foot and ankle injuries, we often see the subtalar joint mobility is limited. This is a friendly self-mobilization technique you can try to