anterior sacrococcygeal ligament anterior sacrococcygeal ligament the anterior sacrococcygeal ligament or ventral sacrococcygeal ligament consists of a few irregular fibers, which descend from the anterior surface of the sacrum to the front of the coccyx, blending with the periosteum. anterior sacrococcygeal ligamentarticulations of pelvis. anterior view. (anterior sacrococcygeal lig. visible at bottom left.)detailsfromsacrumtococcyxidentifierslatinligamentum sacrococcygeum anteriusta98a03.2.08.004ta21691fma76850anatomical terminology this short ligament forms the continuation of the anterior longitudinal ligament and stretches over the sacrococcygeal symphysis.