Subject-specific hip geometry and hip joint centre location affects calculated contact forces at the hip during gait |
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| Authors: | G Lenaerts W Bartels F Gelaude M Mulier A Spaepen G Van der Perre I Jonkers |
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| Institution: | 1. Department of Biomedical Kinesiology, Katholieke Universiteit Leuven, Tervuursevest 101, B-3001 Heverlee, Belgium;2. Division. BMGO, Department of Mechanical Engineering, Katholieke Universiteit Leuven, Celestijnenlaan 300, B-3001 Heverlee, Belgium;3. Department of Orthopaedic Surgery, Universitaire Ziekenhuizen Leuven, Weligerveld 1, B-3212 Lubbeek, Pellenberg, Belgium;1. Arts et Metiers ParisTech, LBM, 151 bd de l’hopital, 75013 Paris, France;2. Royal Children''s Hospital, Melbourne, Australia;3. University of Melbourne, School of Engineering, Australia;4. Murdoch Children Research Institute, Melbourne, Australia;1. Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Bologna, Italy;2. Department of Industrial Engineering, University of Bologna, Italy;3. Department of Biomedical Kinesiology, K.U. Leuven, Belgium;1. Delaware Rehabilitation Institute, University of Delaware, Newark, DE, United States;2. Department of Biomedical Engineering, University of Delaware Newark, DE, United States;3. Department of Mechanical Engineering, University of Delaware, Newark, DE, United States;1. Laboratory of Biomechanical Engineering, MIRA Institute, University of Twente, Enschede, The Netherlands;2. Department of Rehabilitation Medicine, MOVE Research Institute Amsterdam, VU University Medical Center, Amsterdam, The Netherlands;3. Orthopedic Research Laboratory, Radboud University Medical Centre, Nijmegen, The Netherlands;1. Section of Sport Science, Department of Public Health, Faculty of Health Sciences, Aarhus University, Dalgas Avenue 4, DK-8000 Aarhus C, Denmark;2. Department of Physiotherapy and Occupational Therapy, Aarhus University Hospital, Norrebrogade 44, DK-8000 Aarhus C, Denmark;3. Department of Orthopedic Surgery, Aarhus University Hospital, Norrebrogade 44, DK-8000 Aarhus C, Denmark;1. School of Allied Health Sciences, Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia;2. Centre for Musculoskeletal Research, Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia;3. Queensland Children?s Motion Analysis Service, Queensland Paediatric Rehabilitation Service, Children?s Health Queensland Hospital and Health Services, Brisbane, Australia;4. Department of Mechanical Engineering, University of Sheffield, United Kingdom;5. INSIGNEO Institute for in silico Medicine, The University of Sheffield, United Kingdom |
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| Abstract: | Hip loading affects the development of hip osteoarthritis, bone remodelling and osseointegration of implants. In this study, we analyzed the effect of subject-specific modelling of hip geometry and hip joint centre (HJC) location on the quantification of hip joint moments, muscle moments and hip contact forces during gait, using musculoskeletal modelling, inverse dynamic analysis and static optimization. For 10 subjects, hip joint moments, muscle moments and hip loading in terms of magnitude and orientation were quantified using three different model types, each including a different amount of subject-specific detail: (1) a generic scaled musculoskeletal model, (2) a generic scaled musculoskeletal model with subject-specific hip geometry (femoral anteversion, neck-length and neck-shaft angle) and (3) a generic scaled musculoskeletal model with subject-specific hip geometry including HJC location. Subject-specific geometry and HJC location were derived from CT. Significant differences were found between the three model types in HJC location, hip flexion–extension moment and inclination angle of the total contact force in the frontal plane. No model agreement was found between the three model types for the calculation of contact forces in terms of magnitude and orientations, and muscle moments. Therefore, we suggest that personalized models with individualized hip joint geometry and HJC location should be used for the quantification of hip loading. For biomechanical analyses aiming to understand modified hip joint loading, and planning hip surgery in patients with osteoarthritis, the amount of subject-specific detail, related to bone geometry and joint centre location in the musculoskeletal models used, needs to be considered. |
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