Investigation of whiplash injuries in the upper cervical spine using a detailed neck model
Investigation of whiplash injuries in the upper cervical spine using a detailed neck model
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DOI：
10.1016/j.jbiomech.2012.01.016
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发表时间：
2012-04-05
影响因子：
2.4
通讯作者：
Cronin, Duane S.
中科院分区：
文献类型：
--
作者：
Fice, Jason B.;Cronin, Duane S.
颈部扭伤仍然造成巨大的社会成本；然而，颈部扭伤的机制和部位仍在研究中。最近，上颈椎韧带，特别是鼻翼韧带，已被确定为潜在的颈椎扭伤损伤部位。在这项研究中，使用了 50% 男性颈椎坐姿的详细且经过验证的显式有限元模型来研究上颈椎反应以及车辆碰撞场景导致颈部扭伤的可能性。该模型之前已在正面和后部碰撞场景中的运动学和软组织应变的节段和整个脊柱水平上进行了验证。该模型预测，随着碰撞严重程度的增加，上颈椎韧带应变也会增加。考虑到所有上颈椎韧带，顶韧带和翼韧带的牵引力相对于其失效应变而言是最大的，这与临床发现一致。该模型根据韧带干扰预测了 15.2 g 正面或 11.7 g 后部碰撞中顶韧带受伤的可能性，以及 20.7 g 正面或 14.4 g 后部碰撞中翼韧带受伤的可能性。未来的研究应考虑初始乘员位置对韧带牵张的影响。 (C) 2012 Elsevier Ltd. 保留所有权利。
Whiplash injuries continue to have significant societal cost; however, the mechanism and location of whiplash injury is still under investigation. Recently, the upper cervical spine ligaments, particularly the alar ligament, have been identified as a potential whiplash injury location. In this study, a detailed and validated explicit finite element model of a 50th percentile male cervical spine in a seated posture was used to investigate upper cervical spine response and the potential for whiplash injury resulting from vehicle crash scenarios. This model was previously validated at the segment and whole spine levels for both kinematics and soft tissue strains in frontal and rear impact scenarios.The model predicted increasing upper cervical spine ligament strain with increasing impact severity. Considering all upper cervical spine ligaments, the distractions in the apical and alar ligaments were the largest relative to their failure strains, in agreement with the clinical findings. The model predicted the potential for injury to the apical ligament for 15.2 g frontal or 11.7 g rear impacts, and to the alar ligament for a 20.7 g frontal or 14.4 g rear impact based on the ligament distractions. Future studies should consider the effect of initial occupant position on ligament distraction. (C) 2012 Elsevier Ltd. All rights reserved.