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基于关节表面的股骨坐标系统:对计算机辅助膝关节关节整形术的含义

Muhammad Sohail¹, Jun Young Kim¹, Jaehyun Park¹

¹Department of Mechanical, Robotics and Energy Engineering, Dongguk University-Seoul, 30 Pildong-ro 1-gil, Jung-gu, Seoul, 04620, Republic of Korea.

Computers in biology and medicine

|July 6, 2023

概括

这项研究引入了一种全膝关节整形手术 (TKA) 的新方法,通过使用大腿关节的关节表面来定义外科手术的跨关节轴 (sTEA). 这提高了解剖学里程碑登记效率,用于准确的膝盖植入物对齐.

科学领域:

整形外科手术整形外科手术
生物医学工程生物医学工程
医疗成像医学成像

背景情况:

膝关节整形术 (TKA) 可以恢复骨关节炎患者的膝关节功能.
准确的股骨坐标系 (FCS) 定义对于TKA的成功至关重要.
由于解剖学变异和带干扰,传统的sTEA注册具有挑战性.

研究的目的:

开发一种新的,高效的,准确的方法来定义无图像TKA的外科手术跨状轴 (sTEA).
改进腿部坐标系统 (FCS) 的解剖标志的注册.
克服传统sTEA注册方法的局限性.

主要方法:

一种新的方法用于分配sTEA使用3D弧度的股骨软骨关节表面,独立于中间 (MS) 和侧面表 (LE).
将3D弧转换为2D最合适曲线,以定义圆柱形状.
使用3D打印骨头和Optitrack跟踪系统进行实验验证.

主要成果:

基于体的sTEA方法实现了高精度,在拟议的sTEA和已确定的解剖轴 (aTEA,Whiteside的线) 之间只有小的角度.
该方法通过消除注册LE或MS的必要性,证明了改进了解剖点注册效率.
实验测量证实了新的sTEA定义的可靠性和精度.

结论:

拟议的基于的sTEA注册方法提供了与传统技术相比的准确性.
这种方法提高了在无图像的TKA中解剖标志登记的效率.
这些发现表明,通过更可靠的FCS定义,TKA手术规划和执行可能得到改善.

关键词:

3D曲线适合的3D曲线腿部坐标系的坐标系是没有图像的导航器.外科手术的交叉状轴.整体膝关节关节整形手术

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