使用3D动作捕捉量化跨肢假肢的动态合和适应退化
Sean S Cullen1, Ruth E Mackay1, Amir A Mohagheghi2
1Department of Mechanical and Aerospace Engineering, College of Engineering, Design and Physical Sciences, Brunel University London, Uxbridge, UK.
Prosthetics and orthotics international
|August 1, 2025
概括
新的假肢配件显示,在六周内,肢体的活塞 (肢体运动) 增加,影响截肢者的舒适性. 这项研究强调了需要采取客观措施,以确保安全和舒适的假肢插座.
科学领域:
- 生物力学 生物力学
- 假肢和整形手术
- 康复工程 康复工程
背景情况:
- 评估下肢假肢的适应性依赖于主观的临床医生和患者反,往往导致截肢者的不适和生活质量降低.
- 早期插座配合对于截肢结果至关重要,但目前的方法缺乏客观量化.
- 假肢和残余肢体之间的动态合是假肢性能和舒适度的一个关键因素.
研究的目的:
- 客观地测量一个新假肢的5度自由度合有效性,在一个活跃的跨肢截肢的最初6周的调整期.
- 通过使用移动捕捉技术,研究随时间变化的假肢肢口相互作用.
- 为了解动态假肢插座行为建立一个基准.
主要方法:
- 使用Qualisys的3D光电子运动捕捉系统来精确跟踪肢体和位运动.
- 在定期行走试验中采用了两部分校准和数据收集系统.
- 在6周的时间里,从一个活跃的横截肢者身上收集了每周的数据,并安装了一个新的假肢套.
主要成果:
- 观察到第6周平均近距离/远距离位移 (挤压) 从3.36毫米增加到10.60毫米.
- 进一步增加了 12.90 毫米的活塞,并增加了一个单一的假肢子.
- 在6周的时间里,参与者的插座舒适度得分从9下降到7.
结论:
- 这项试点研究表明了假肢-残留物合动态的可量化的变化.
- 在关键调整阶段提供了对假肢插座机械行为的新见解.
- 建议制定客观框架的基础,以确定安全和舒适的假肢合界限.
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