Posterior Process Of The Talus, Posterior View

Description

Posterior process of the talus fills the frame in a posterior ankle view, with the medial and lateral tubercles separated by the sulcus for the flexor hallucis longus tendon. The groove runs obliquely between the tubercles, positioned inferior to the posterior margin of the trochlea tali and superior to the posterior calcaneal articular surface that participates in the subtalar joint. Medially, the tubercle lies closer to the tarsal canal and the course of the neurovascular bundle in the tarsal tunnel, while the lateral tubercle projects toward the posterolateral ankle, where an accessory ossicle (os trigonum) may abut the talus. Bony contours are emphasized. Posterior talar anatomy matters because it is a common pain generator in athletes and dancers with forced plantarflexion, where posterior ankle impingement can arise from a prominent lateral tubercle (Stieda process) or an os trigonum, with secondary irritation of the flexor hallucis longus as it glides in the sulcus. Surgeons planning posterior ankle arthroscopy or open excision rely on this fixed posterior perspective to judge how close the FHL groove sits to the posterior subtalar joint and to anticipate safe working corridors relative to the medial tubercle and tarsal tunnel contents. Tendon friction and stenosing tenosynovitis often localize here. Use this illustration in gross anatomy and lower-limb musculoskeletal teaching to anchor the relationship between the talar posterior process and the FHL tendon at the ankle, and in sports medicine or foot and ankle surgery materials covering os trigonum syndrome, Stieda process, and posterior hindfoot endoscopy. It also suits radiology atlases that correlate posterior talar landmarks with lateral ankle radiographs, CT, and MRI reporting. Anatomical accuracy verified by SciePro's Medical Advisory Board.