在机械对齐和功能对齐方法之间的双十字型保持全膝关节关节整形术的体内动力学比较
Tomofumi Kage1, Kenichi Kono1, Tetsuya Tomita2
1Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
概括
在双十字式保持全膝关节整形术 (BCR TKA) 中的功能对齐 (FA) 显示,与机械对齐 (MA) 相比,在坐时显著的关节对齐和较少的中间后部翻译. 这些发现澄清了BCR TKA动力学.
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
- 医疗成像医学成像
背景情况:
- 双十字节保持全膝关节整形术 (BCR TKA) 旨在保护本地膝关节动力学.
- 了解对齐方法对TKA动力学的影响对于优化患者的治疗结果至关重要.
研究的目的:
- 用机械对齐 (MA) 和功能对齐 (FA) 方法比较BCR TKA的体内动力学.
- 评估在动态活动期间MA和FA TKA之间的关节运动和组件翻译的差异.
主要方法:
- 在坐时对20个MA TKA和20个FA TKA膝盖进行光镜分析.
- 3D-2D注册技术用于跟踪部部件相对于部部件的运动.
- 评估膝盖的曲,轴向旋转,肌角和前后翻译.
主要成果:
- 在MA和FA TKA组之间,膝盖曲或股骨外侧旋转没有显著差异.
- 在FA TKA组中,从延伸到早期曲,表现出显著的肌对齐.
- 与MA TKA相比,FA TKA组在中间侧呈现较小的后部翻译.
- 两组人都表现出中枢转到20°的曲和横向转超过20°.
结论:
- 与机械对齐相比,BCR TKA中的功能对齐导致了显著的Varus对齐,并在坐时减少了中间后部翻译.
- 这些动力学差异突出了MA和FA TKA在功能活动期间的独特联合行为.
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