Abstract

several sutures at the posterior-lateral aspect of the skull. It overlies the transverse-sigmoid sinus junction and is used to avoid sinus injury during posterior cranial fossa surgery. This study aimed to evaluate the morphometry of asterion in relation to key cranial landmarks in 50 adult dry skulls. Objective: To provide average reference values which can aid surgeons in precisely locating this landmark to minimize intra-operative complications during lateral skull base procedures. Methods: Various distances from the asterion to anatomical landmarks like the mastoid process, external occipital protuberance, posteriormost point of zygomatic arch and lambda were measured using digital calipers. The relation of the asterion to the underlying transversesigmoid sinus junction was also noted. Results: The mean distances measured were: asterion to posteriormost point of zygomatic arch

Description