J Trauma
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In the United States, only motor vehicle crashes and cancer claim more lives among children than do firearms. This national study attempts to determine whether firearm prevalence is related to rates of unintentional firearm deaths, suicides, and homicides among children. ⋯ A disproportionately high number of 5-14 year olds died from suicide, homicide, and unintentional firearm deaths in states and regions where guns were more prevalent.
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Multicenter Study Comparative Study
Motor vehicle restraints: primary versus secondary enforcement and ethnicity.
Efforts to increase motor vehicle restraint use have been broadly based rather than focused on specific populations. Identifying specific issues, including populations with low restraint use, can help target educational campaigns. Previous studies have reported differences in restraint use by ethnicity. This study was performed to determine whether differences exist in motor vehicle restraint use by ethnicity and whether these differences are altered by the presence of primary versus secondary restraint laws. ⋯ In a state with secondary enforcement laws, restraint use varied significantly with ethnicity. Restraint use was markedly increased in all ethnic groups by the presence of a primary enforcement law. Implementation and enforcement of primary restraint laws is essential to improving motor vehicle restraint use. Educational campaigns to increase restraint use need to target specific populations.
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Knee dislocation, which poses a significant risk for injury of the popliteal artery, prompts many surgeons to evaluate these patients with arteriography routinely. Our hypothesis was that physical examination alone (without arteriography) accurately confirms or excludes surgically significant vascular injuries associated with knee dislocation. ⋯ This limited series suggests that the presence or absence of an injury of the popliteal artery after knee dislocation can be safely and reliably predicted, with a 94.3% positive predictive value and 100% negative predictive value. Arteriography appears to be unnecessary when physical examination is negative but may avert negative vascular exploration when physical examination is positive. This approach substantially reduces cost and resource use without adverse impact on the patient.