**10. Posterior table fracture**

Extremely high-velocity injury may result in comminution of the posterior table with dural tearing. If this happens, the intracranial contents become in direct communication with nasal mucosa. In this setting, management principles are careful mucosal removal, nasofrontal duct occlusion and cranialization of the frontal sinus. The neurosurgeon repairs any associated intracranial injuries. The frontal lobes are then allowed to expand into the space where the frontal sinus once existed.
