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Skull fracture

Definition

A skull fracture is a fracture or break in the cranial (skull) bones.

Alternative Names

Basilar skull fracture; Depressed skull fracture; Linear skull fracture

Considerations

Skull fractures may occur with head injuries. The skull provides good protection for the brain. However, a severe impact or blow can cause the skull to break. It may be accompanied by concussion or other injury to the brain.

The brain can be affected directly by damage to the nervous system tissue and bleeding. The brain can also be affected indirectly by blood clots that form under the skull and compress the underlying brain tissue (subdural or epidural hematoma).

A simple fracture is a break in the bone without damage to the skin.

A linear skull fracture is a break in a cranial bone resembling a thin line, without splintering, depression, or distortion of bone.

A depressed skull fracture is a break in a cranial bone (or "crushed" portion of skull) with depression of the bone in toward the brain.

A compound fracture involves a break in, or loss of, skin and splintering of the bone.

Causes

  • Head trauma
  • Falls, automobile accidents, physical assault, and sports

Symptoms

  • Bleeding from wound, ears, nose, or around eyes
  • Bruising behind the ears or under the eyes
  • Changes in pupils (sizes unequal, not reactive to light)
  • Confusion
  • Convulsions
  • Difficulties with balance
  • Drainage of clear or bloody fluid from ears or nose
  • Drowsiness
  • Headache
  • Loss of consciousness
  • Nausea
  • Restlessness, irritability
  • Slurred speech
  • Stiff neck
  • Swelling
  • Visual disturbances
  • Vomiting

In some cases, the only symptom may be a bump on the head. A bump or bruise may take up to 24 hours to develop.

First Aid

If you think someone has a skull fracture:

  1. Check the airways, breathing, and circulation. If necessary, begin rescue breathing and CPR.
  2. Avoid moving the person (unless absolutely necessary) until medical help arrives. Have someone to call 911 (or the local emergency number) for medical assistance.
  3. If the person must be moved, take care to stabilize the head and neck. Place your hands on both sides of the head and under the shoulders. Do not allow the head to bend forward or backward, or to twist or turn.
  4. Carefully check the site of injury, but do not probe in or around the site with a foreign object. It can be hard to know if the skull is fractured or depressed (dented in) at the site of injury.
  5. If there is bleeding, apply firm pressure with a clean cloth over a broad area to control blood loss.
  6. If blood soaks through, do not remove the original cloth. Instead, apply more cloths on top, and continue to apply pressure.
  7. If the person is vomiting, stabilize the head and neck, and carefully turn the victim to the side to prevent choking on vomit.
  8. If the person is conscious and experiencing any of the previously listed symptoms, transport to the nearest emergency medical facility (even if the patient does not think medical help is needed).

Do Not

  • Do NOT move the person unless absolutely necessary. Head injuries may be associated with spinal injuries.
  • Do NOT remove protruding objects.
  • Do NOT allow the person to continue with physical activities.
  • Do NOT forget to watch the person closely until medical help arrives.
  • Do NOT give the person any medicines before talking to a doctor.
  • Do NOT leave the person alone, even if there are no obvious problems.

When to Contact a Medical Professional

  • There are problems with breathing or circulation.
  • Direct pressure does not stop bleeding from the nose, ears, or wound.
  • There is drainage of clear fluid from the nose or ears.
  • There is facial swelling, bleeding, or bruising.
  • There is an object protruding from the skull.
  • The person is unconscious, is experiencing convulsions, has multiple injuries, appears to be in any distress, or cannot think clearly.

Prevention

Although no child is injury-proof, parents can take some simple steps to keep their children from getting head injuries.

Not all head injuries can be prevented. The following simple steps can help keep you and your child safe:

  1. Always use safety equipment during activities that could cause a head injury. These include seat belts, bicycle or motorcycle helmets, and hard hats.
  2. Learn and follow bicycle safety recommendations.
  3. Do not drink and drive. Do not allow yourself to be driven by someone who may have been drinking alcohol or is otherwise impaired.

References

Kerr HA. Closed head injury. Clin Sports Med. 32 (2013) 273-287.

Heegaard WG, Biros MH, Head injury. In: Marx JA, Hockberger RS, Walls RM, et al, eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 8th ed. Philadelphia, Pa: Elsevier Mosby; 2013:chap 41.

Ling GSF. Traumatic brain injury and spinal cord injury. In: Goldman L, Schafer AI, eds. Cecil Medicine. 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 406.


Review Date: 1/13/2014
Reviewed By: Jacob L. Heller, MD, MHA, Emergency Medicine, Virginia Mason Medical Center, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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