Comparison between line and surface mesh models to represent the rotator cuff muscle geometry in musculoskeletal models. Issue 11 (18th August 2017)

• Record Type: Journal Article
• Authors: Hoffmann, Marion; Haering, Diane; Begon, Mickaël
• Is Part Of: Computer methods in biomechanics and biomedical engineering. Volume 20:Issue 11(2017)
• Page Start: 1175
• Page End: 1181
• Publication Date: 2017-08-18
• Subjects: Rotator cuff -- mesh model -- muscle geometry -- musculoskeletal model -- MRI; Biomechanics -- Data processing -- Periodicals; Biomedical engineering -- Periodicals; Biomechanics -- Periodicals; Biomedical Engineering -- methods -- Periodicals; Computing Methodologies -- Periodicals; 612.7
• DOI: 10.1080/10255842.2017.1340463
• Languages: English
• ISSNs: 1025-5842

Abstract

Abstract: Accurate muscle geometry (muscle length and moment arm) is required to estimate muscle function when using musculoskeletal modelling. In shoulder, muscles are often modelled as a collection of independent line segments, leading to non-physiological muscles trajectory, especially for the rotator cuff muscles. To prevent this, a surface mesh model was developed and validated against 7 MRI positions in one participant. Mean moment arm errors was 11.4% for the line vs. 8.8% for the mesh model. While the model with independent lines led to some non-physiological trajectories, the mesh model gave lower misestimations of muscle lengths and moment arms.