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Skull fractures. Your skull can fracture during an injury to your head. If this happens, you'll usually have a CT scan to determine the extent of the injury. There are different types of skull fractures, including: 1  simple (or closed) fracture â where the skin hasn't broken and the surrounding tissue isn't damaged. 2  compound (or open) fracture â where the skin has broken and the surrounding tissue may be damaged.
Fractures of the dens, not to be confused with Hangman's fractures, are classified into three categories according to the AndersonâD'Alonso system: 1  Type I Fracture - Extends through the tip of the dens. 2  Type II Fracture - Extends through the base of the dens. 3  Type III Fracture - Extends through the vertebral body of the axis.