DEVELOPMENT OF TENSILE NECK INJURY CRITERIA FOR PEDIATRIC POPULACE

儿童脊髓损伤是一种毁灭性的创伤结局， 终生衰弱的后果。每年在美国 仅15岁以下的儿童就有1000多人患上脊髓 受伤；大约10%是致命的，而这些儿童中有41% 维持不同程度的不可逆转的神经功能缺陷。这些 损伤最常发生在颈部(80%)，与之相比 所有其他儿科损伤，导致AIS得分最高， 死亡率最高，住院时间最长。这些伤害中的许多 是脊椎受拉力作用的结果 展开安全气囊。很少有生物力学研究解决这些问题。 与安全气囊相关的伤害；因此，我们目前的项目旨在 确定儿科脊柱颈部损伤标准。这 程序将确定身体狒狒颈部的抗拉强度 脊椎。我们正在测试一种假设，即年龄较小的样本具有 与成年试件相比，强度较低，但延性较好。 此外，我们还将研究损伤的失效模式和机制 这可能发生在不同的年龄。因此，最终的目标是 获取颈椎拉伸破坏的年龄标度规律 特征，以便它们可以应用于伤害预防 针对人类儿科人群的战略。这个项目，它 刚刚开始，已经产生了很好的结果。 利用狒狒身体的颈椎组织，我们开始 获得用于验证测试假人和计算机模型的数据， 伤害预防计划的发展，以及 更好的伤害管理和护理策略。

Pediatric spinal cord injury is a devastating trauma outcome with life-long debilitating consequences. Each year in the United States alone, over 1000 children under the age of 15 incur spinal cord injuries; approximately 10% are fatal, while 41% of these children sustain varying degrees of irreversible neurological deficit. These injuries most often occur in the cervical region (80%) and, compared with all other pediatric injuries, result in the largest AIS scores, highest mortality, and longest hospital stays. Many of these injuries are a result of tensile forces applied to the spine from the deployment of air bags. Few biomechanics studies have addressed these air-bag-related injuries; therefore our current project is aimed at determining neck injury criteria for the pediatric spine. This program will determine the tensile strength of cadaver baboon cervical spines. We are testing the hypothesis that younger age specimens have less strength but more ductility characteristics than adult specimens. Also, we will examine the failure patterns and mechanisms of injury that might occur at different ages. Therefore, the ultimate goal is to obtain age scaling laws for cervical spine tensile failure characteristics so that they may be applied in injury prevention strategies for the human pediatric population. This project, which has just gotten under way, is already generating excellent results. Using cervical spine tissue from baboon cadavers, we are beginning to obtain data for the validation of test dummies and computer models, the development of injury prevention schemes, and the evolution of better injury management and care strategies.