The Cuboid Articular Surface Of The Human Calcaneus In Medial View

Description

Medially, the calcaneus is presented with emphasis on the anterior cuboid articular surface, the facet that meets the posterior surface of the cuboid to form the calcaneocuboid joint. The animation cycles through a controlled medial rotation, keeping the heel bone in anatomical position so the slightly concave facet can be appreciated relative to the plantar calcaneal tuberosity inferiorly and the talar articular facets positioned more superiorly on the calcaneal body. As the viewpoint tracks along the medial border, the anterior process and the margin of the sinus tarsi come in and out of profile, clarifying how this surface sits at the distal end of the hindfoot. That concavity matters because the calcaneocuboid joint functions as a key component of the transverse tarsal (Chopart) joint, where subtle changes in facet contour influence midfoot locking and unlocking during gait. Small osteophytes, post-traumatic incongruity after an intra-articular calcaneal fracture, or coalition near the anterior process can restrict motion and present as lateral midfoot pain and reduced push-off. Motion sells the anatomy here: seeing the facet’s curvature from slightly different angles makes joint congruence and the direction of articular loading easier to grasp than a single still. Use it in gross anatomy and lower-limb osteology teaching to anchor discussions of hindfoot-to-midfoot articulation, or in orthopaedic and podiatry education when explaining Chopart dislocations and post-fracture calcaneocuboid arthritis. It also fits radiology correlation modules when pairing with oblique foot radiographs or CT reconstructions that interrogate the calcaneocuboid joint line. Anatomical accuracy verified by SciePro's Medical Advisory Board.