累积负载增加和负载不对称性持续在行走的人与一个转骨固的肢体
Peter B Thomsen1, Brecca M M Gaffney2, James B Tracy1
1University of Colorado Bone-Anchored Limb Research Group, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Department of Physical Medicine & Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; VA Eastern Colorado Healthcare System, Aurora, CO, USA.
Gait & posture
|June 6, 2024
概括
骨四肢 (BAL) 的使用增加了肢体和部负荷转截肢,但肢体之间的负荷不对称性仍然存在,可能会影响长期的关节健康.
科学领域:
- 生物力学 生物力学
- 整形外科手术 整形外科手术
- 康复医学 康复医学 康复医学
背景情况:
- 骨肢体假肢 (BAL) 提供了一个替代传统插座假肢的替代方案.
- 之前的研究表明,BAL可以改善行走过程中关节和四肢负荷机制.
- BALs对累积关节负荷和退行性关节疾病进展的长期影响尚不清楚.
研究的目的:
- 在使用BALs与插座假肢相比,在使用BALs的移骨截肢者中,在走路时,对累积的四肢和关节负荷的变化进行调查.
- 评估BALs对肢体间负荷对称性的影响.
主要方法:
- 在BAL植入之前和一年后,对八名腿骨移植截肢者进行了回顾性病例系列分析.
- 收集每天的步数和全身运动捕捉数据,用于地面行走.
- 使用科恩的d效应大小计算和比较累积的四肢/关节负荷和负荷对称度量.
主要成果:
- 在BAL植入后的一年,参与者在累积的肢体总负荷和前面平面部时刻的双边增加.
- 截肢和完整的四肢之间的负载不对称性持续存在,完整的四肢经历了相对超负荷.
- 肢体和关节负荷的所有测量变量在一年的随访中仍然不对称.
结论:
- 虽然BALs增加了整体四肢和部负荷,但它们没有解决先前存在的四肢之间的负荷不对称性.
- 持续的负载不对称性与长期的负面关节健康结果和退行性关节疾病有关.
- 需要进一步的研究来制定解决习惯性负载不对称性的策略,以优化BAL用户的康复和关节健康.
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