Lateral Process Of The Talus, Superior View

Description

Talus anatomy is centered in this superior view on the lateral process, a stout posterolateral projection that sits lateral to the trochlear surface and just anterior to the posterior facet for the calcaneus. From above, the talar dome (trochlea tali) occupies the central, superior articular area, while the neck and head taper anteriorly toward the navicular. Lateral to the dome, the lateral process forms a blunt ridge along the outer margin, bridging the superior ankle joint surface and the lateral contour leading inferiorly toward the subtalar articulation. Edges of the dome and the lateral gutter are easy to appreciate in this fixed perspective. Orthopedic relevance is high because the lateral process is the fracture site in the classic snowboarder’s fracture, an injury that often masquerades clinically as a routine lateral ankle sprain and is frequently missed on initial radiographs. The relationship between the lateral process and the subtalar joint explains why patients can present with persistent hindfoot pain, pain on inversion-eversion, and limited subtalar motion, even when the tibiotalar joint appears stable. Strong overhead lighting and a clean bony surface model help you read the ridge-like contour and margins that correlate with CT evaluation, fragment displacement, and surgical planning for open reduction and internal fixation when the posterior facet is involved. Small structure. Big consequences. Use this illustration in foot and ankle anatomy teaching (gross anatomy, kinesiology, and orthopedic residency), in radiology modules comparing oblique ankle radiographs with CT for lateral process fractures, and in surgical education materials discussing lateral hindfoot approaches and subtalar joint preservation. Anatomical accuracy verified by SciePro's Medical Advisory Board.