Sensitivity of knee cartilage biomechanics in finite element analysis to selected Musculoskeletal models

Joose P. J. Peitola, Amir Esrafilian, Atte S. A. Eskelinen, Michael S. Andersen and Rami K. Korhonen

Computer Methods in Biomechanics and Biomedical Engineering, 2025, vol. 28, issue 14, 2150-2161

Abstract: Knee joint kinematics and kinetics analyzed by musculoskeletal (MS) modeling are often utilized in finite element (FE) models, estimating tissue-level mechanical responses. We compared knee cartilage stresses, strains, and centers of pressure of FE models driven by two widely used MS models, implemented in AnyBody and OpenSim. Minor discrepancies in the results were observed between the models. AnyBody-driven FE models showed slightly higher stresses in the medial tibial cartilage, while OpenSim-driven FE models estimated more anterior and lateral center of pressure. Recognizing these differences in the MS-FE models is important to ensure reliable analysis of cartilage mechanics and failure and simulation of rehabilitation.

Date: 2025
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DOI: 10.1080/10255842.2024.2360594

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