Transfemoral bone-anchored limb use changes dynamic hip muscle forces during walking

IF 2.4 3区 医学 Q3 BIOPHYSICS Journal of biomechanics Pub Date : 2025-03-08 DOI:10.1016/j.jbiomech.2025.112620
Mitchell A. Ekdahl , Nicholas W. Vandenberg , Danielle H. Melton , Brad D. Hendershot , Cory L. Christiansen , Jason W. Stoneback , Brecca M.M. Gaffney
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Abstract

People with unilateral transfemoral amputation commonly experience pain at the residual limb-socket interface and heightened risk of musculoskeletal overuse injuries. Compensatory movement patterns acutely alleviate pain but can contribute to chronic aberrant muscle function and joint loading. Bone-anchored limbs have been shown to normalize joint loading during walking compared to socket prostheses, but their effects on muscle forces are not well understood. In this study, we compared dynamic hip muscle forces in all three planes of motion during walking before and after transfemoral bone-anchored limb implantation. Overground walking motion capture data were collected from 19 participants before (in socket prosthesis) and 12 months following bone-anchored limb implantation. Bilateral hip muscle forces were estimated during stance using subject-specific musculoskeletal models, resolved into anteroposterior, mediolateral, and superoinferior components, and compared across timepoints. After bone-anchored limb implantation, amputated-side hip abductor muscle forces were increased throughout stance (p ≤ 0.048), suggesting greater force-generating capacity of hip-spanning muscles during walking. Amputated-side hip flexor posterior muscle forces were decreased following implantation during terminal stance (p < 0.001), which may contribute to reduced anterior hip joint loading in pre-swing observed in bone-anchored limb users. Hip abductor muscle forces were more symmetric during single limb support (p < 0.034) and flexor muscle forces were more asymmetric during terminal stance (p = 0.047) following bone-anchored limb implantation. This study provides new insights of how bone-anchored limbs influence hip muscle function during walking, with implications for hip osteoarthritis development and progression in this population.
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来源期刊
Journal of biomechanics
Journal of biomechanics 生物-工程:生物医学
CiteScore
5.10
自引率
4.20%
发文量
345
审稿时长
1 months
期刊介绍: The Journal of Biomechanics publishes reports of original and substantial findings using the principles of mechanics to explore biological problems. Analytical, as well as experimental papers may be submitted, and the journal accepts original articles, surveys and perspective articles (usually by Editorial invitation only), book reviews and letters to the Editor. The criteria for acceptance of manuscripts include excellence, novelty, significance, clarity, conciseness and interest to the readership. Papers published in the journal may cover a wide range of topics in biomechanics, including, but not limited to: -Fundamental Topics - Biomechanics of the musculoskeletal, cardiovascular, and respiratory systems, mechanics of hard and soft tissues, biofluid mechanics, mechanics of prostheses and implant-tissue interfaces, mechanics of cells. -Cardiovascular and Respiratory Biomechanics - Mechanics of blood-flow, air-flow, mechanics of the soft tissues, flow-tissue or flow-prosthesis interactions. -Cell Biomechanics - Biomechanic analyses of cells, membranes and sub-cellular structures; the relationship of the mechanical environment to cell and tissue response. -Dental Biomechanics - Design and analysis of dental tissues and prostheses, mechanics of chewing. -Functional Tissue Engineering - The role of biomechanical factors in engineered tissue replacements and regenerative medicine. -Injury Biomechanics - Mechanics of impact and trauma, dynamics of man-machine interaction. -Molecular Biomechanics - Mechanical analyses of biomolecules. -Orthopedic Biomechanics - Mechanics of fracture and fracture fixation, mechanics of implants and implant fixation, mechanics of bones and joints, wear of natural and artificial joints. -Rehabilitation Biomechanics - Analyses of gait, mechanics of prosthetics and orthotics. -Sports Biomechanics - Mechanical analyses of sports performance.
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