Medial Tubercle Of The Talus, Posterior View

Description

Talus anatomy is centered here on the medial tubercle of the posterior process, viewed from behind at the hindfoot. The tubercle sits medial to the sulcus for the flexor hallucis longus tendon, with the lateral tubercle forming the opposite border of this narrow posterior groove. Superiorly, the posterior margin of the trochlea tali transitions into the posterior process, while inferiorly the contour leads toward the posterior facet for the calcaneus at the subtalar joint. Bone surface detail is kept crisp. Posterior ankle pain often localizes to this region because the posterior talar process, including the medial tubercle, is a bony corridor for the flexor hallucis longus as it courses toward the plantar hallux, so stenosis of the groove, tenosynovitis, or scar after inversion injury can produce painful triggering and tenderness just posteromedial to the ankle. Orthopaedic and sports clinicians also reference these tubercles when evaluating posterior ankle impingement, including fractures of the posterior process (Shepherd fracture) and variants such as an os trigonum, where the relationship between the tubercles and the tendon groove guides differential diagnosis on CT or MRI. The fixed posterior perspective makes the medial-lateral boundaries of the tendon sulcus easy to read against adjacent articular margins, a helpful landmark set when teaching hindfoot osteology. Use this illustration in gross anatomy and musculoskeletal courses to orient students to the posterior process of the talus and the flexor hallucis longus groove, or in radiology and orthopaedic publications discussing posterior ankle impingement, os trigonum syndrome, and posterior talar process fractures. It also supports preoperative counseling and operative reports for hindfoot endoscopy or posterior ankle arthroscopy where the medial tubercle serves as a palpable bony reference. Anatomical accuracy verified by SciePro's Medical Advisory Board.