Superior Facet Of The Talus, Medial View

Description

Talus anatomy is centered here on the superior trochlear surface as it appears from the medial side, highlighting the smooth, rounded superior facet that articulates with the tibial plafond. Along the medial margin, the medial trochlear lip and adjacent medial surface of the body sit closest to the medial malleolar facet, while the talar neck projects anteriorly toward the head. Posteriorly, the body thickens toward the posterior process region, with the superior facet curving inferiorly out of view toward the subtalar articular surfaces. Ankle stability depends on the congruence between the talar trochlea and the tibiofibular mortise, and a medial profile helps you appreciate how the dome’s curvature and medial shoulder constrain translation during dorsiflexion and plantarflexion. This is the surface assessed in osteochondral lesions of the talar dome, which often localize to the medial talar shoulder and can be correlated with MRI staging and arthroscopic planning. Crisp separation of cortical bone from the articular cartilage boundary supports teaching of joint-surface topography and makes it easier to explain why talar dome fractures, malleolar fractures, or subtle mortise widening can alter contact pressures across the superior facet. Small surface changes matter. Use this illustration in gross anatomy labs covering the tarsal bones, in orthopaedic and podiatry teaching on ankle mortise biomechanics, or in manuscripts discussing talar dome osteochondral defects and ankle arthroscopy portals with medial-sided lesions. Anatomical accuracy verified by SciePro's Medical Advisory Board.