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当代的全膝盖设计是否复制了原生三叶的解剖学?

Nikhil Gattu¹, David B Doherty¹, Hongjia He¹

¹McGovern Medical School, University of Texas Health Science Center at Houston, 5420 West Loop S. Suite 1300, Bellaire, TX, 77401, USA.

European journal of orthopaedic surgery & traumatology : orthopedie traumatologie

|November 23, 2024

概括

整膝关节整形 (TKA) 设计通常具有侧面导向的三叶,与本地解剖学不同. 这项研究发现,目前的TKA三形设计不是解剖学上的,需要改进,以更好地适应骨.

科学领域:

整形外科手术整形外科手术
生物机械工程生物机械工程
解剖学研究解剖学研究

背景情况:

外科医生越来越多地选择在全膝关节整形术 (TKA) 期间不进行膝关节复苏.
这一趋势强调了对TKA设计的关键需求,这些设计准确地复制了本地骨和三骨解剖学.
目前的植入物设计缺乏关于最佳适应本地带的共识.

研究的目的:

为了比较各种当代TKA大腿部部件的三角膜形态与健康的本地三角膜的解剖学.
为了确定TKA设计中的潜在解剖学差异,与膝关节全关节整形术期间的带非表面化相关.

主要方法:

从13个TKA大腿部部部件 (7家制造商) 和37个健康的人类大腿部3D模型的重建.
测量关键的三角膜参数:长度,角,槽角和面的高度/宽度.
在15°的增量下分析三膜形态.

主要成果:

假肢三明显比原生三更短,更浅 (p < 0.01).
原生三角呈现出近距离的中间方向,而TKA设计显示出侧面面向的三角与相反的槽方向 (p < 0.001).
在TKA模型中,介面和侧面面高度 (R2 = 0.89) 之间有很强的相关性,与本地大腿骨不同 (R2 = 0.06).

结论:

现有的TKA设计具有侧面导向的三角,与本地解剖学有所不同.
这些发现强调了需要改进的TKA三形设计,以更好地匹配本地形形态,特别是随着形非表面化率的上升.

关键词:

骨的跟踪骨的跟踪骨关节骨关节骨关节整体膝关节关节整形术膝关节整形术喉形态学喉形态学透气管的方向透气管的方向

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