Posterior Tibiotalar Part of the Medial Ligament, Posterior View

Description

Posteriorly, the right ankle is opened to emphasize the posterior tibiotalar part of the medial (deltoid) ligament, highlighted against the distal tibia, fibula, and the trochlea of the talus. Fibers arise from the posterior colliculus of the medial malleolus and sweep inferolaterally and distally in a fan-like band to the posteromedial talus, spanning the tibiotalar joint line. The ligament sits medial to the fibula and posterior to the talar dome, with adjacent capsular tissue and periosteum blending at its margins. Bone landmarks stay crisp. That posterior vantage matters when you need to teach or plan for instability patterns that involve the posterior recess of the ankle mortise. The posterior tibiotalar fibers resist posterior translation and external rotation of the talus, and they often fail in higher-grade eversion injuries where the deltoid ligament complex is disrupted rather than isolated anterior fibers alone. Arthroscopy and open repair both benefit from recognizing how this band drapes behind the talar body, since scar tissue and synovitis in the posteromedial gutter can obscure the true talar attachment and lead to under-treatment of deltoid incompetence. Misread this, and chronic valgus talar tilt follows. Use this asset for foot and ankle modules in gross anatomy and kinesiology courses, for orthopedic and sports medicine lectures on deltoid ligament rupture, and for surgical atlas figures covering posteromedial ankle arthroscopy, deltoid repair, or reconstruction planning. It also supports radiology teaching when correlating posteromedial ligament injury on MRI with clinical valgus stress and external rotation tests. Anatomical accuracy verified by SciePro's Medical Advisory Board.