Anterior Facet For Calcaneus Of The Talus, Inferior View

Description

Talus, viewed from its inferior aspect, brings the head and neck into the foreground and isolates the anterior calcaneal facet as a small, flat articular surface on the plantar side of the talar head. The facet sits anterior and slightly medial to the larger posterior calcaneal facet, separated by the sulcus tali that contributes to the sinus tarsi space when opposed to the calcaneal sulcus. Proximal to the head, the talar body and trochlea lie superior and posterior, while the talar neck angles anteriorly toward the navicular articular surface, which is seen wrapping onto the head’s anterior contour. Orientation of the anterior calcaneal facet matters for understanding subtalar joint congruity and the talocalcaneonavicular complex, where load transfer from the tibial plafond is distributed into the hindfoot during stance. Subtalar arthritis, post-traumatic malalignment after calcaneal fractures, and congenital coalitions can alter or obliterate normal facet contour, and that change often correlates with loss of inversion and eversion as well as sinus tarsi pain. The inferior viewpoint keeps the joint surfaces and the sulcus tali in a single frame, which helps when you need to explain why screws for subtalar arthrodesis are planned to avoid violating adjacent articular cartilage. Small surface. Big consequences. Podiatric medicine and orthopedic teaching modules can pair this illustration with CT reformats to discuss facet morphology, coalition patterns, and surgical corridors for subtalar fusion or sinus tarsi procedures. Medical publishers will also find it suited for atlases covering the ankle and tarsal bones, where an inferior perspective clarifies the relationship between the anterior and posterior talocalcaneal articulations without distraction from surrounding soft tissues. Anatomical accuracy verified by SciePro's Medical Advisory Board.