Interosseous talocalcaneal ligament
The interosseous talocalcaneal ligament is a broad, flat, bilaminar transverse band in the sinus tarsi. It descends obliquely and laterally from the sulcus tali to the calcaneal sulcus. The posterior lamina of the ligament is associated with the talocalcaneal joint, its anterior lamina with the talocalcaneonavicular joint. Its medial fibers are taut in eversion.