J Trauma
-
Head motion, an important factor in acute subdural hematoma (ASDH), can be broken down into translational and rotational elements. We used three-dimensional finite element analysis to examine the thresholds of angular and tangential acceleration required to tear bridging veins in humans during head impact. ⋯ Impact direction and orientation of bridging veins are both important factors in ASDH. Threshold criteria for ASDH can be expressed in terms of tangential and rotational acceleration.
-
Trauma registries offer distinct advantages and disadvantages when assessing the effectiveness of trauma systems. Detailed injury data and statistical comparisons that use TRISS methodology and the Major Trauma Outcome Study norms provide advantages over population-based or preventable death studies. However, miscodings and registry differences in injury severity coding limit the validity and generalizability of findings. The purpose of this study was to identify these strengths and weaknesses and to determine whether registry studies provide evidence of trauma system efficacy. ⋯ These studies provide evidence of the effectiveness of trauma systems. However, future studies that use trauma registries would be strengthened by including both prehospital and postdischarge trauma deaths, standardizing trauma registry inclusion criteria and developing a contemporary national reference norm for trauma outcome.
-
Injured children represent 25% of all injured patients in the United States and have unique needs that may require treatment at a pediatric trauma center or a trauma center with pediatric commitment. This work attempts to determine if there is existing evidence that pediatric trauma centers, trauma centers with pediatric commitment, or trauma systems have improved the care of injured children. ⋯ Further analysis is necessary to demonstrate whether trauma systems make a difference in pediatric outcome. Injury prevention will have the greatest impact on future pediatric injury outcomes.
-
Comparative Study
Comparison of alternative methods for assessing injury severity based on anatomic descriptors.
There is mounting confusion as to which anatomic scoring systems can be used to adequately control for trauma case mix when predicting patient survival. ⋯ Results support the integrity of the AIS and argue for its continued use in research and evaluation. The modified Anatomic Profile, Anatomic Profile, and New Injury Severity Score, however, should be used in preference to the Injury Severity Score as an overall measure of severity.