植入物设计可能会影响膝盖曲器在上升和下降阶梯期间的激活模式
Alexis K Nelson-Tranum1, Marcus C Ford2, Nuanqiu Hou3
1The University of Tennessee Health Science Center, College of Graduate Health Sciences, Memphis, Tennessee, USA.
Bone & joint research
|December 1, 2025
概括
在全膝关节整形术 (TKA) 中的动力对齐促进了膝盖主导的楼梯导航策略. 植入物设计影响肌肉激活,不那么稳定的设计需要更多的腿筋参与稳定性.
科学领域:
- 整形外科手术 整形外科手术
- 生物力学 生物力学
- 康复 康复 康复 康复
背景情况:
- 膝关节整形术 (TKA) 旨在恢复功能,但楼梯导航仍然具有挑战性.
- 了解TKA后的生物机械和神经肌肉因素对于优化患者的治疗结果至关重要.
研究的目的:
- 调查外科对齐技术和植入物设计对TKA患者在楼梯谈判期间的 sagittal 平面时刻和神经肌肉控制的影响.
- 测试这种假设,即对齐技术会影响关节生物力学和神经肌肉控制,而植入物设计则不会.
主要方法:
- 52名TKA患者在术后一年被分析.
- 参与者执行了楼梯上升和下降的任务.
- 分析了 Sagittal 平面关节时刻和表面电肌图.
主要成果:
- 与机械对齐 (MA) 相比,动力对齐 (KA) 导致膝盖延伸的时刻更大,膝盖占主导地位的策略.
- 植入物设计没有影响延伸时刻,但显著影响了神经肌肉控制.
- 植入物中较大的前后关节 (AP) 约束与下半身肌 (BF) 激活相关.
结论:
- 手术对齐,特别是KA,在楼梯谈判期间显著影响关节生物力学和战略.
- 植入物设计影响神经肌肉控制,不太稳定的设计需要增加腿筋激活.
- 调整技术和植入物设计都是TKA后康复的重要考虑因素.
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