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相关概念视频

Changes in the Appendicular Skeleton with Age01:09

Changes in the Appendicular Skeleton with Age

The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...

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在THA后,三维的脊骨皮特征是否会正常化? 一个前性,使用动作捕捉分析进行比较研究.

Nicholas S Ryan1, Erik Kowalski1, Stephanie Antoniades2

  • 1The University of Ottawa, Human Movement Biomechanics Laboratory, Ottawa, ON, Canada.

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概括

整部关节整形术 (THA) 改善了脊骨盆运动,在日常活动中使形,冠状和轴面的运动正常化. 这种动态正常化表明,有望改善患者的治疗结果,并降低外科手术后脱位风险.

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科学领域:

  • 整形外科手术 整形外科手术
  • 生物力学 生物力学
  • 运动分析运动分析.

背景情况:

  • 脊椎骨硬度与关节整形术 (THA) 后的不良结果和脱位风险有关.
  • 手术前的脊皮皮特征可以为患者特定的手术规划提供杯面导向的信息.
  • 之前的研究表明,静态姿势中THA后的斜腰平面正常化,但动态正常化仍然不清楚.

研究的目的:

  • 通过运动捕捉来研究THA后的动态脊运动正常化.
  • 在动态任务中确定正常化是否延伸到冠状和轴面.

主要方法:

  • 3D运动捕捉评估了15名THA患者 (手术前和后) 和9名对照者的脊椎,骨盆和部运动.
  • 任务包括坐着的曲和伸展,坐着的干旋转和步行.
  • 统计参数映射 (SPM) 分析了步行时间,比较了THA前后和患者与对照组.

主要成果:

  • 在坐着曲和伸展过程中,THA患者在斜腰脊柱,骨盆和部运动范围 (ROM) 中显著改善.
  • 走路期间的斜腰部ROM也在THA后显著改善.
  • 冠状和轴脊和部ROM在坐着的车旋转和步行过程中增加了THA后,表明横向平面的正常化.

结论:

  • 在THA.之后,脊椎骨盆运动表现出跨 sagittal,coronal 和 axial 平面的动态正常化.
  • 这些发现支持了手术后脊骨特征的动态性质.
  • 为了优化外科手术规划,需要采用包含这些动态变化的预测模型.