Detailed Illustration of the Male Interosseous Talocalcaneal Ligament, Lateral View

Description

Seen from the lateral aspect of the male foot and ankle, the talus sits superior to the calcaneus and articulates anteriorly with the navicular, while the calcaneus extends posteriorly to form the heel and anteriorly toward the calcaneocuboid joint. Deep within the sinus tarsi between the talar sulcus and calcaneal sulcus, the interosseous talocalcaneal ligament spans obliquely, binding the subtalar joint surfaces and separating the posterior subtalar facet from the anterior and middle facets. Portions of the lateral malleolus (fibula) and distal tibia are typically visible superiorly, with the tarsus leading into the metatarsus and phalanges distally. Bony alignment is clear. This lateral perspective matters because it clarifies how the interosseous talocalcaneal ligament functions as the primary internal stabilizer of the subtalar joint, limiting excessive inversion and eversion while maintaining congruity during gait. Sinus tarsi syndrome and lateral hindfoot pain often follow inversion sprains, and clinicians frequently correlate point tenderness over the sinus tarsi with injury to the interosseous and cervical talocalcaneal ligaments. For surgeons, it is a key landmark during subtalar arthroscopy and when placing hardware for subtalar arthrodesis, where preserving or debriding sinus tarsi contents can affect postoperative stability and pain. Use this artwork in gross anatomy teaching on the tarsus and subtalar joint, in sports medicine materials explaining chronic ankle instability, and in orthopedic or podiatric publications discussing sinus tarsi pathology, subtalar fusion, or lateral hindfoot approaches. It also supports patient-facing counseling when you need a clear depiction of deep ligament anatomy that standard surface views miss. Anatomical accuracy verified by SciePro's Medical Advisory Board.