...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Orthopaedic Translation >Comparative analysis of the biomechanics of the adjacent segments after minimally invasive cervical surgeries versus anterior cervical discectomy and fusion: A finite element study
【24h】

Comparative analysis of the biomechanics of the adjacent segments after minimally invasive cervical surgeries versus anterior cervical discectomy and fusion: A finite element study

机译：微创宫颈手术后邻近宫颈外切除术和融合后相邻区段生物力学的对比分析及融合：有限元研究

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

PurposePercutaneous full-endoscopic anterior cervical discectomy (PEACD) and posterior cervical foraminotomy (PCF) as alternatives to anterior cervical discectomy and fusion (ACDF) are extensively used in the treatment of patients with cervical spondylotic radiculopathy. The possibility of avoiding the risk of accelerated degeneration of the adjacent segments caused by fusion is claimed to be the theoretical advantage of these approaches; however, there is a paucity of supportive evidence from biomechanical data. Therefore, this study investigated and compared the effects of PCF, PEACD, and ACDF on the adjacent segments and operative segments of the cervical spine from a biomechanical standpoint.MethodA normal and intact three-dimensional finite element digital model of C4–C7 was constructed and validated, and the finite element models of PEACD, PCF, and ACDF were obtained by modifying the C4–C7 model. All models were exposed to identical conditions of load during flexion, extension, axial rotation, and lateral bending. We calculated the range of motion (ROM), intervertebral disc pressure (IDP), and facet joint contact force (FJCF) of the operative segment and the adjacent segment in different motion conditions.ResultThe conventional ACDF had a remarkable influence on the ROM and IDP of the operative segment and the adjacent segments. In the PEACD model, the change of ROM was not noticeable; the IDP of the operative segment was significantly smaller, whereas the change of IDP of the adjacent segment was insignificant. In the PCF model, the ROM and IDP of all segments remained unaffected.During extension, the facet joint contact force changed significantly after ACDF, and it changed slightly after PECAD and PCF.ConclusionBy comparatively analyzing the biomechanical changes of the cervical spine after PCF, PEACD, and ACDF using the finite element method, we suggested that PCF and PEACD were more suitable for surgical intervention of cervical spondylotic radiculopathy than ACDF from a biomechanical point of view?and PCF may outperform PEACD.
机译：以宫颈椎间盘突出和融合（ACDF）的替代方法，用术治疗宫颈椎间盘突出患者作为前宫颈椎间盘切除术和融合（ACDF）的替代术治疗宫颈椎间盘突出患者的用途全内镜前宫颈椎间盘切除术（PEACD）和后宫颈传染病避免由融合引起的相邻区段加速退化的可能性被要求是这些方法的理论优势;然而，缺乏生物力学数据的支持性证据。因此，本研究研究并比较了PCF，PEACD和ACDF对来自生物力学立场的颈椎对邻近区段和手术区段的影响。在构建C4-C7的正常和完整的三维有限元数字模型和完整的三维有限元数字模型。通过修改C4-C7模型获得了验证的PEACD，PCF和ACDF的有限元模型。在屈曲，延伸，轴向旋转和横向弯曲期间，所有型号都暴露于相同的负载条件。我们计算了操作段的运动范围（ROM），椎间盘压力（IDP）和面关节接触力（FJCF）和不同运动条件中的相邻区段。常规ACDF对ROM和IDP具有显着影响操作段和相邻的段。在PEACD模型中，ROM的变化并不明显;操作段的IDP明显较小，而相邻段的IDP的变化是微不足道的。在PCF模型中，所有段的ROM和IDP仍然不受影响。延伸，关节接触力在ACDF后显着变化，PECAD和PCF后略微发生变化.CORUSCEBY在PCF后的颈椎的生物力学变化相比， PEACD和ACDF使用有限元方法，我们建议PCF和PEACD更适合从生物力学的生物力学的颈椎脊髓神经病变的手术干预？，PCF可能优于PEACD。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号