Frontal vehicle crashes have been a leading cause of spinal injuries in recent years. Reconstruction of frontal crashes using computational models and spinal load analysis helps us understand the patterns of injury and load propagation during frontal crashes. By reconstructing a real crash test and using a viscoelastic crash dummy model, spinal injury patterns were analyzed. The results indicated that a moderate crash with an impact speed of 56 km/h leads to injuries in L1-L2 and L5-S1 levels (L for lumbar and S for sacral vertebrae). The largest spinal loads and injuries were mainly observed immediately after the airbag deployment when the peak of the crash acceleration transpires. Also, the effects of impulse magnitude on the spinal loads and head injury criterion (HIC) showed that HIC is more sensitive than compressive forces to the magnitude of impulse. Moreover, the effects of disc preconditioning as a major factor in the risk of injury was evaluated. The results demonstrate that as the lumbar spine is subjected to a longer preloading, it will be more vulnerable to injury; preconditioning of the discs more adversely affected the risk of injury than a 10% increase in the crash impulse. Overall the results highlight the importance of spinal injury prevention in frontal crashes.

近年来，正面车辆碰撞已成为脊柱受伤的主要原因。使用计算模型和脊柱负荷分析重建正面碰撞，有助于我们了解正面碰撞过程中受伤和负荷传播的模式。通过重建真实的碰撞测试并使用粘弹性碰撞假人模型，分析了脊柱损伤模式。结果表明，以56 km / h的撞击速度进行的中等碰撞会导致L1-L2和L5-S1水平的伤害（腰部为L，and骨为S）。最大的脊柱负荷和伤害主要是在安全气囊展开后，当碰撞加速度达到峰值时立即观察到的。也，脉冲幅度对脊柱负荷和头部损伤判据（HIC）的影响表明，HIC比压缩力对脉冲幅度更敏感。此外，评估了椎间盘预处理作为伤害风险的主要因素的影响。结果表明，由于腰椎预紧时间更长，因此更容易受伤。碟片的预处理比碰撞冲击力增加10％更为严重地影响了受伤风险。总的来说，结果突出了预防脊柱前额碰撞中脊髓损伤的重要性。椎间盘的预处理比碰撞冲击力增加10％更为不利地影响了受伤风险。总的来说，结果突出了预防脊柱前额碰撞中脊髓损伤的重要性。椎间盘的预处理比碰撞冲击力增加10％更为不利地影响了受伤风险。总的来说，结果突出了预防脊柱前额碰撞中脊髓损伤的重要性。