Non-rigid deformation to include subject-specific detail in musculoskeletal models of CP children with proximal femoral deformity and its effect on muscle and contact forces during gait. Issue 4 (12th March 2019)

• Record Type: Journal Article
• Authors: Wesseling, Mariska; Bosmans, Lode; Van Dijck, Christophe; Vander Sloten, Jos; Wirix-Speetjens, Roel; Jonkers, Ilse
• Is Part Of: Computer methods in biomechanics and biomedical engineering. Volume 22:Issue 4(2019)
• Page Start: 376
• Page End: 385
• Publication Date: 2019-03-12
• Subjects: Subject-specific -- MRI -- non-rigid deformation -- musculoskeletal modelling; Biomechanics -- Data processing -- Periodicals; Biomedical engineering -- Periodicals; Biomechanics -- Periodicals; Biomedical Engineering -- methods -- Periodicals; Computing Methodologies -- Periodicals; 612.7
• DOI: 10.1080/10255842.2018.1558216
• Languages: English
• ISSNs: 1025-5842

Abstract

Abstract: To account for proximal femoral deformities in children with cerebral palsy (CP), subject-specific musculoskeletal models are needed. Non-rigid deformation (NRD) deforms generic onto personalized bone geometry and thereby transforms the muscle points. The goal of this study was to determine to what extent the models and simulation outcomes in CP patients differ when including subject-specific detail using NRD or Magnetic Resonance Imaging (MRI)-based models. The NRD models slightly overestimated hip contact forces compared to MRI models and differences in muscle point positions and moment arm lengths (MALs) remained, although differences were smaller than for the generic model.