Abstract
Results. The simulated kinematics of the head-neck complex showed relatively good agreement with the experiment with most of the predicted peak values fell within one standard deviation of the experimental data [2]. Under rear impact, the whole C0-T1 structure formed a S-shaped curvature with flexion at the upper levels and extension at the lower levels at early stage after impact, during which the lower cervical levels might experience hyperextensions. The results showed that the capsular ligament (CL) should be the major concern under the rear impact condition, followed by anterior longitudinal ligament (ALL). In current study, only the peak strain values of CL were above its failure limit under both accelerations. Under 8G, the ALL also exceeded its failure strains. The strain value of posterior longitudinal ligament kept low under both conditions, while there is definitely no tension in ligamentum flavum and inter spinous ligament. The peak impact acceleration has significant effect on the potential injury of ligaments. Under higher acceleration, more ligaments will reach failure strain at much shorter time immediately after impact. Conclusion. The current model was identified to be available for human neck injury study.
Published Version
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