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The biomechanical response of the lower cervical spine post laminectomy: geometrically-parametric patient-specific finite element analyses
, Article Journal of Medical and Biological Engineering ; Volume 41 , 29 October , 2020 , Pages 59-70 ; Cheng, C. H ; Wang, J. L ; Niu, C. C ; Parnianpour, M ; Khalaf, K ; Sharif University of Technology
Springer Science and Business Media Deutschland GmbH
2020
Abstract
Purpose: This study aimed to investigate the biomechanical impact of laminectomy on cervical intersegmental motion and load sharing using a parametric patient-specific finite element (FE) model towards providing clinicians with a viable quantitative tool for informed decision-making and improved surgical planning. Methods: Ten subject-specific nonlinear osteo-ligamentous cervical spine (C3–C7) FE models were developed using X-ray image-based algorithms. The models were used to evaluate the effect of laminectomy on lower cervical spine biomechanics for two-level (C3–C4) and three-level (C3–C5) laminectomy procedures. Results: The average cervical spine ranges of motion (ROM) for the pre-op...
Dynamic simulation of biomechanical behaviour of the pelvis in the lateral impact loads
, Article Journal of Healthcare Engineering ; Volume 2018 , 2018 ; 20402295 (ISSN) ; Wang, D ; Qu, A ; Xiangsen, Z ; Wang, Q ; Baradaran Kazemian, B ; Sharif University of Technology
Abstract
The objective of this study was to develop and validate a novel 3D dynamic model of a pelvic side-impactor system. The biomechanical responses of a pelvic flexible model (having.mnf file suffix) under the lateral impact load for predicting the bone fracture mechanism are investigated as well. The 3D solid model of the side-impactor system was imported into MSC/ADAMS software for analyzing the dynamic model, and the pelvic flexible model was extracted from the CT images of a Chinese female volunteer. The flexible model of the pelvis system was developed considering a wide range of mechanical properties in the bone complex and soft tissue to achieve a realistic biomechanical response during a...
The biomechanical response of the lower cervical spine post laminectomy: geometrically-parametric patient-specific finite element analyses
, Article Journal of Medical and Biological Engineering ; Volume 41, Issue 1 , 2021 , Pages 59-70 ; 16090985 (ISSN) ; Cheng, C. H ; Wang, J. L ; Niu, C. C ; Parnianpour, M ; Khalaf, K ; Sharif University of Technology
Springer Science and Business Media Deutschland GmbH
2021
Abstract
Purpose: This study aimed to investigate the biomechanical impact of laminectomy on cervical intersegmental motion and load sharing using a parametric patient-specific finite element (FE) model towards providing clinicians with a viable quantitative tool for informed decision-making and improved surgical planning. Methods: Ten subject-specific nonlinear osteo-ligamentous cervical spine (C3–C7) FE models were developed using X-ray image-based algorithms. The models were used to evaluate the effect of laminectomy on lower cervical spine biomechanics for two-level (C3–C4) and three-level (C3–C5) laminectomy procedures. Results: The average cervical spine ranges of motion (ROM) for the pre-op...