J Trauma
-
Case Reports Randomized Controlled Trial Comparative Study Clinical Trial
New technique for treatment of unstable distal femur fractures by locked double-plating: case report and biomechanical evaluation.
A comminuted, intra-articular distal femur fracture was surgically treated by the authors with a locked, double-plating technique because fixation stability could not be initially achieved by using a standard double-plating technique. The purpose of this study was to determine biomechanically whether a locked double-plate construct would enhance fixation stability compared with a nonlocked double-plate construct. ⋯ The technique described is particularly applicable for severely comminuted fractures of the distal femur and fractures in osteopenic bone with poor screw purchase. It offers a simple alternative for enhancing fixation stability, which avoids the potential complications of methylmethacrylate-enhanced screw fixation.
-
Comparative Study
Effectiveness of state trauma systems in reducing injury-related mortality: a national evaluation.
Regional trauma systems were proposed 2 decades ago to reduce injury mortality rates. Because of the difficulties in evaluating their effectiveness and the methodologic limitations of previously published studies, the relative benefits of establishing an organized system of trauma care remains controversial. ⋯ These data demonstrate that a state trauma system is associated with a reduction in the risk of death caused by injury. The effect is most evident on analysis of MVC deaths.
-
The technique of percutaneous catheterization of the subclavian vein by the infraclavicular approach is dependent on the location of the subclavian vein in relation to the clavicle. The purpose of this study was to analyze the anatomic relationship between these two structures and how it is influenced by changes in shoulder positioning. ⋯ Infraclavicular subclavian venipuncture should be performed with shoulders in a neutral position and also in slight retraction. An appreciation of the anatomic relationship between the clavicle and the subclavian vein is the key to successful execution of this technique.
-
Neutrophil (PMN) priming after hemorrhagic shock is predictive of the subsequent development of multiple organ failure, but the mechanism remains unknown. Recently, we and others have demonstrated that mesenteric lymph from shock animals resuscitated with lactated Ringer's solution (LR) is not only a potent PMN priming agent but also causes lung injury. Work by others has shown that resuscitation with hypertonic saline (HTS) protects animals from lung injury after hemorrhagic shock. Therefore, we hypothesize that resuscitation with HTS will abolish PMN priming by postshock mesenteric lymph. ⋯ HTS not only decreases postshock mesenteric lymph production, it eliminates PMN priming by mesenteric lymph, suggesting a mechanism for the beneficial effects of HTS resuscitation.
-
Although hypothermia often occurs after trauma and has protective effects during ischemia and organ preservation, it remains unknown whether maintenance of hypothermia or restoring the body temperature to normothermia during resuscitation has any deleterious or beneficial effects on heart performance and organ blood flow after trauma-hemorrhage. ⋯ Our data indicate that restoration of normothermia during resuscitation improves cardiac function and hepatic blood flow compared with hypothermia.