Anterior Talar Articular Surface Of The Human Calcaneus, Superior View

Description

Calcaneus anatomy is presented in a superior perspective centered on the anterior talar articular surface, the small oval facet on the distal superior aspect of the heel bone. The facet sits anterior to the larger posterior talar facet and lateral to the sustentaculum tali region, where the middle talar facet commonly lies. Anteriorly, the calcaneal anterior process and the approach toward the calcaneocuboid articular surface define the distal margin, while the sulcus calcanei and adjacent tarsal canal contours frame the subtalar joint surfaces posteriorly. Small surface details matter here. Recognizing the anterior talar facet and its relationship to the other subtalar facets helps when teaching the three-facet versus two-facet (fused middle and anterior) morphology, a pattern that can influence subtalar joint congruity and load distribution. Clinically, this area becomes relevant in subtalar osteoarthritis, in preoperative planning for calcaneal lengthening osteotomy near the anterior process, and when discussing talocalcaneal coalition variants that alter normal facet boundaries and the tarsal canal configuration. Focused lighting and an uncluttered skeletal field make the edges of the articular cartilage footprint, the intervening non-articular bone, and the transition toward the anterior process easy to distinguish from a single fixed viewpoint. Use this illustration in gross anatomy and musculoskeletal radiology teaching to correlate dry bone landmarks with subtalar joint lines on CT, or in orthopedic and podiatric publications describing anterior process fractures, subtalar arthrodesis orientation, or facet morphology in hindfoot pain. It also suits atlas plates and exam materials where learners must identify tarsal articular surfaces without soft-tissue distraction. Anatomical accuracy verified by SciePro's Medical Advisory Board.