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A silent epidemic: Minor traumatic brain injury

Date:
October 10, 2013
Source:
American Academy of Orthopaedic Surgeons
Summary:
In the United States, approximately 1.4 million people suffer a traumatic brain injury (TBI) each year. Of those injuries, three out of four are minor TBI (mTBI) -- a head injury that causes a temporary change in mental status including confusion, an altered level of consciousness, or perceptual or behavioral impairments.

In the United States, approximately 1.4 million people suffer a traumatic brain injury (TBI) each year. Of those injuries, three out of four are minor TBI (mTBI) -- a head injury that causes a temporary change in mental status including confusion, an altered level of consciousness, or perceptual or behavioral impairments.

According to a literature review appearing in the October 2013 issue of the Journal of the American Academy of Orthopaedic Surgeons (JAAOS), falls and motor vehicle accidents are responsible for most cases of mTBI and also are a common cause of bone and joint injuries. "Musculoskeletal injuries are often seen concurrently with some studies estimating that 50 percent of patients with orthopaedic injuries also sustain a mTBI," says lead study author Richard L. Uhl, MD, an orthopaedic surgeon at Albany Medical Center in Albany, N.Y.

Approximately 80 percent of patients who sustain a mTBI can be safely discharged from the emergency department and will fully recover and return to their baseline mental status. However, mTBI often goes undiagnosed initially because symptoms do not appear until the patient resumes everyday life. Advanced imaging of the head such as CT scans is often of little use as the majority of patients with a mTBI will initially have a normal examination.

A Silent Epidemic: mTBI by the Numbers

  • The Centers for Disease Control and Prevention and the National Center for Injury Prevention and Control declared mTBI a major public health issue and a silent epidemic.
  • Patients with multisystem trauma and mTBI are almost twice as likely as those with multisystem trauma alone to have persistent cognitive impairment and to report symptoms of depression, anxiety, and posttraumatic stress disorder.
  • Patients with mTBI and lower extremity injuries are three times more likely to experience cognitive and behavioral difficulties at one year post-injury than those who sustain only lower extremity trauma.
  • When symptoms last for more than three months, a patient is said to have post-concussion syndrome (PCS), a disorder that can be associated with substantial financial, social, and emotional challenges.
  • Males from newborn to 4 years old are among the population most prone to suffering mTBI and have the highest rate of TBI-related emergency department visits.
  • Males are more likely than females in all age groups to sustain mTBI.

Symptoms such as headache, fatigue, dizziness, anxiety, impaired cognition, and memory deficits may affect up to 58 percent of patients one month after injury. An estimated 15 to 25 percent of those who suffer mTBI may have residual symptoms that sometimes lead to compromised function that can last for a year or more after the injury.

According to study co-author and orthopaedic surgeon Andrew J. Rosenbaum, MD, after an mTBI, patients must be counseled on their vulnerability to second-impact syndrome -- sustaining a second concussion before symptoms of the initial concussion have healed, causing greater injury. "Second-impact syndrome can have devastating consequences, including rapid-onset swelling of the brain; worsening function of the brain, spinal cord, muscles or nerves; and instability of normal body functions."

The study suggests orthopaedic surgeons can play a crucial role in diagnosing mTBI because, in addition to providing long-term care for the traumatic musculoskeletal injuries, they can ensure that patients are appropriately referred to those with expertise in managing mTBI.


Story Source:

The above story is based on materials provided by American Academy of Orthopaedic Surgeons. Note: Materials may be edited for content and length.


Journal Reference:

  1. R. L. Uhl, A. J. Rosenbaum, C. Czajka, M. Mulligan, C. King. Minor Traumatic Brain Injury: A Primer for the Orthopaedic Surgeon. Journal of the American Academy of Orthopaedic Surgeons, 2013; 21 (10): 624 DOI: 10.5435/JAAOS-21-10-624

Cite This Page:

American Academy of Orthopaedic Surgeons. "A silent epidemic: Minor traumatic brain injury." ScienceDaily. ScienceDaily, 10 October 2013. <www.sciencedaily.com/releases/2013/10/131010124740.htm>.
American Academy of Orthopaedic Surgeons. (2013, October 10). A silent epidemic: Minor traumatic brain injury. ScienceDaily. Retrieved October 20, 2014 from www.sciencedaily.com/releases/2013/10/131010124740.htm
American Academy of Orthopaedic Surgeons. "A silent epidemic: Minor traumatic brain injury." ScienceDaily. www.sciencedaily.com/releases/2013/10/131010124740.htm (accessed October 20, 2014).

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