Towards Tailored Rehabilitation by Implementation of a Novel Musculoskeletal Finite Element Analysis Pipeline

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Esrafilian, Amir
Stenroth, Lauri
Mononen, Mika E
Vartiainen, Paavo
Tanska, Petri
Karjalainen, Pasi A
Suomalainen, Juha-Sampo
Arokoski, Jari PA
Saxby, David J
Lloyd, David G
Korhonen, Rami K
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2022
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Abstract

Tissue-level mechanics (e.g., stress and strain) are important factors governing tissue remodeling and development of knee osteoarthritis (KOA), and hence, the success of physical rehabilitation. To date, no clinically feasible analysis toolbox has been introduced and used to inform clinical decision making with subject-specific in-depth joint mechanics of different activities. Herein, we utilized a rapid state-of-the-art electromyography-assisted musculoskeletal finite element analysis toolbox with fibril-reinforced poro(visco)elastic cartilages and menisci to investigate knee mechanics in different activities. Tissue mechanical responses, believed to govern collagen damage, cell death, and fixed charge density loss of proteoglycans, were characterized within 15 patients with KOA while various daily activities and rehabilitation exercises were performed. Results showed more inter-participant variation in joint mechanics during rehabilitation exercises compared to daily activities. Accordingly, the devised workflow may be used for designing subject-specific rehabilitation protocols. Further, results showed the potential to tailor rehabilitation exercises, or assess capacity for daily activity modifications, to optimally load knee tissue, especially when mechanically-induced cartilage degeneration and adaptation are of interest.

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IEEE Transactions on Neural Systems and Rehabilitation Engineering

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NHMRC

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GNT2001734

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© The Author(s) 2022. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Rehabilitation engineering

Biomedical engineering

Control engineering, mechatronics and robotics

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Esrafilian, A; Stenroth, L; Mononen, ME; Vartiainen, P; Tanska, P; Karjalainen, PA; Suomalainen, J-S; Arokoski, JPA; Saxby, DJ; Lloyd, DG; Korhonen, RK, Towards Tailored Rehabilitation by Implementation of a Novel Musculoskeletal Finite Element Analysis Pipeline, IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2022

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