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A depressed skull fracture is a type of fracture usually resulting from blunt force trauma, such as getting struck with a hammer, rock or getting kicked in the head. These types of fracturesâwhich occur in 11% of severe head injuriesâare comminuted fractures in which broken bones displace inward.
With lateral skull fracture, the middle meningeal artery can be torn producing an epidural hematoma. With violent falls, traumatic subarachnoid hemorrhages due to arterial tears. During the fall, if the brain is thrust against the boney skull, it can be injured producing a small hemorrhage. A second mechanism, the bridging veins between the dura and the brain are torn producing a subdural hematoma.