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用于多层次的脊椎固定的脚螺杆路径规划.

Jingwei Zhao1, Yunxian Zhang2,3, Shi Zhan1

  • 1Spine Surgery Department, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China.

Medical physics
|January 12, 2024
PubMed
概括

本研究引入了一种用于多层次脊柱固定的新型螺丝轨迹规划方法. 新方法优化了螺丝放置和连接棒的位置,与现有的单级方法相比,提高了临床成功率.

关键词:
连接棒的约束是连接棒的约束.多层次的脊椎固定.脚螺丝路径规划 脚螺丝路径规划螺丝安全放置区域区域.

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科学领域:

  • 脊柱外科手术 脊柱外科手术
  • 骨科生物力学 骨科生物力学
  • 手术规划软件 手术规划软件

背景情况:

  • 脊柱内部固定通常使用脚螺丝和连接棒跨越所有脊柱段.
  • 现有的方法专注于单个脊椎螺丝轨迹的规划,忽视了多层制约和螺丝杆连接系统.
  • 多层次的脊椎固定需要对螺丝放置和杆连接进行综合规划.

研究的目的:

  • 提出一个螺丝轨迹规划方法,用于多层次的脊柱固定.
  • 将多层次的脊椎约束和个别的脊椎安全公差纳入螺丝放置.
  • 考虑螺丝杆关节系统,以加强外科手术规划.

主要方法:

  • 开发了一个圆柱形螺丝安全通道模型,而不是一个单一的最佳轨迹.
  • 包括一个灵活的螺丝盖可访问性模型.
  • 模拟了连接棒,以适应脊柱轮,并确保抓取能力.
  • 使用正常脊柱的回顾性临床数据验证了该方法.

主要成果:

  • 拟议的方法实现了88%的螺丝放置成功率,而不会破坏脚皮质,100%的临床A级质量.
  • 现有的单级方法分别实现了86.1%和99.1%的成功率.
  • 专家评估证实,计划中的螺丝轨迹和连接棒符合临床植入要求.

结论:

  • 这种新的螺丝规划方法优化了多层次的脊椎固定.
  • 这种方法是可行的,并为临床应用提供了比单脊椎方法的优势.