J Trauma
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C1-C2 is the predominant level of cervical spine injuries in children and adolescents. Either a fracture of the dens or atlantoaxial dislocation (AAD) without fracture of the dens can occur. We present a number of cases to compare their clinical presentations and discuss the preferred method of treatment. ⋯ There is a higher incidence of atlantoaxial dislocation without fracture in children under 13 years of age and a higher incidence of dens fractures in those over 13 years of age. Those with fractures of the dens are more likely to present with evidence of neural injury while those with AAD are more likely to be neurologically intact; however, a correct diagnosis and proper management are mandatory to prevent chronic myelopathy. Halo-vest immobilization is sufficient for most fractures of the dens in children, with AAD usually requiring a fusion.
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Comparative Study
A population-based study of outcome after injury to car occupants and to pedestrians.
The literature indicates that trauma center pedestrian mortality rates approximate twice that of injured car occupants. This study was performed to test the hypothesis that outcomes will be similar given similar degrees of injury severity if analyzed from an epidemiologic perspective. Differences are expected in the cause and place of death because of different injury profiles. ⋯ These findings have important implications for prehospital care. A policy of "scoop and run" is advocated for injured car occupants in shock because of the high frequency of aortic and abdominal injuries. Advanced life support measures are appropriate at the scene to stabilize the airway and to protect the entire spine in pedestrians with multiple injuries because of the high frequency of brain and vertebral trauma.
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Case Reports
Computed tomography detection of active mesenteric hemorrhage following blunt abdominal trauma.
Following blunt abdominal trauma, patients still may be actively bleed ing, despite seeming hemodynamically stable. By detecting extravasation of contrast-enhanced blood in the absence of any other evidence to support solid visceral injury as the source, computed tomography (CT) scanning was able to indicate ongoing hemorrhage in two patients, thought most likely of mesenteric origin. This information influenced the decision for intervention, which in these two cases was laparotomy, where bleeding torn mesenteric vessels were confirmed.
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Perforations of the gastrointestinal (GI) tract, compared to solid organ injuries, are a relatively infrequent sequela of blunt abdominal trauma in children. The purpose of this study is to review retrospectively the diagnostic modalities used in 30 children with proven traumatic intestinal perforations treated at one institution. Since computed tomography with intravenous and oral GI contrast is commonly used in the diagnosis of suspected solid organ injury from blunt abdominal trauma, we evaluated retrospectively the computed tomographic (CT) scan findings in these children in an attempt to accurately predict or suggest GI perforation. ⋯ The CT scan may be a useful adjunct to the diagnosis of an intestinal perforation in patients who have no immediate indication for surgery. Presently, the only CT finding that is an absolute indication for laparotomy is free air (in the absence of pulmonary/mediastinal injury or barotrauma). The other CT "findings" need to be validated prospectively.
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Internal carotid arterial occlusion, being a rare occurrence following whiplash injury, is frequently missed. We report an unusual case of a 41-year-old woman driver who was involved in a head-on collision with a truck. ⋯ Subsequent investigations showed a right parietal lobe infarct and bilateral internal carotid arterial dissection. We conclude that acute whiplash injury can result in bilateral internal carotid arterial dissection and that clinicians treating these patients should be aware of this complication.