Development and validation of a three dimensional finite element model of whole cervical spine

Basa, S.; Balasubramanian, V.

doi:10.1016/s0021-9290(06)84708-1

Cited by 3 publications

(3 citation statements)

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“…Consequently, via a parametric analysis, the ligaments (with the exception of the ALL, PLL, and C2-C3 IS) were assigned a more drastic toe region to incorporate increased motions during the start of the loading curve. Modulus values were also modified slightly within the range of commonly reported values for each ligament [1,16,17,24,25]. The toe region of the ALL was decreased to allow for stiffening behavior that was required in extension [5] (Fig.…”

Section: Fe Model Calibrationmentioning

confidence: 99%

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Validation of a C2–C7 cervical spine finite element model using specimen-specific flexibility data

Kallemeyn

Gandhi

Kode

et al. 2010

Medical Engineering & Physics

138

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Section: Fe Model Calibrationmentioning

confidence: 99%

“…Due to the time and effort required for subject-specific cervical spine model development, an 'average' geometry is often used. The cervical spine exhibits nonlinear behavior; nevertheless, it is common for cervical spine finite element models to be validated only via an end-point response to a particular load or moment [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Validation of a C2–C7 cervical spine finite element model using specimen-specific flexibility data

Kallemeyn

Gandhi

Kode

et al. 2010

Medical Engineering & Physics

138

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“…In order to implement a physically correct and plausible simulation, material properties (the Young’s modulus and Poisson’s Ratio) of the vertebrae C4-C5 were used from Basa et. al [ 29 ].…”

Section: Fem Analysis Results and Discussionmentioning

confidence: 99%

Mixed reality simulation of rasping procedure in artificial cervical disc replacement (ACDR) surgery

et al. 2010

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BackgroundUntil quite recently spinal disorder problems in the U.S. have been operated by fusing cervical vertebrae instead of replacement of the cervical disc with an artificial disc. Cervical disc replacement is a recently approved procedure in the U.S. It is one of the most challenging surgical procedures in the medical field due to the deficiencies in available diagnostic tools and insufficient number of surgical practices For physicians and surgical instrument developers, it is critical to understand how to successfully deploy the new artificial disc replacement systems. Without proper understanding and practice of the deployment procedure, it is possible to injure the vertebral body. Mixed reality (MR) and virtual reality (VR) surgical simulators are becoming an indispensable part of physicians’ training, since they offer a risk free training environment. In this study, MR simulation framework and intricacies involved in the development of a MR simulator for the rasping procedure in artificial cervical disc replacement (ACDR) surgery are investigated. The major components that make up the MR surgical simulator with motion tracking system are addressed. FindingsA mixed reality surgical simulator that targets rasping procedure in the artificial cervical disc replacement surgery with a VICON motion tracking system was developed. There were several challenges in the development of MR surgical simulator. First, the assembly of different hardware components for surgical simulation development that involves knowledge and application of interdisciplinary fields such as signal processing, computer vision and graphics, along with the design and placements of sensors etc . Second challenge was the creation of a physically correct model of the rasping procedure in order to attain critical forces. This challenge was handled with finite element modeling. The third challenge was minimization of error in mapping movements of an actor in real model to a virtual model in a process called registration. This issue was overcome by a two-way (virtual object to real domain and real domain to virtual object) semi-automatic registration method.ConclusionsThe applicability of the VICON MR setting for the ACDR surgical simulator is demonstrated. The main stream problems encountered in MR surgical simulator development are addressed. First, an effective environment for MR surgical development is constructed. Second, the strain and the stress intensities and critical forces are simulated under the various rasp instrument loadings with impacts that are applied on intervertebral surfaces of the anterior vertebrae throughout the rasping procedure. Third, two approaches are introduced to solve the registration problem in MR setting. Results show that our system creates an effective environment for surgical simulation development and solves tedious and time-consuming registration problems caused by misalignments. Further, the MR ACDR surgery simulator was tested by 5 different physicians who found that the MR simulator is effective enough ...

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Numerical Modelling of the Behaviour of the Cervical Spine under the Effect of a Flexion / Extension

Damba¹,

Oudrane²,

Aour³

et al. 2019

AJRESD

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Numerical simulation is today widely used in several fields of engineering, and research undertaken for more than 20 years concerning the geometric and mechanical modeling of the spine gradually leads to clinical applications of major interest. Indeed, the in vivo and in vitro evaluation tools pose a certain number of limitations: non-standardized procedures and inter-specimen variability for in vitro tests, medical, ethical constraints, and inter-individual variability for in vivo. These limitations are actually obstacles to comparison. It is notably within the framework of implant comparisons that the methods of structural calculation, and more particularly finite element modeling, widely used in classical mechanics, find their usefulness. in this context, this present work consists in developing a three-dimensional model of the cervical spine, in order to subsequently optimize the fitting of disc prostheses

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Development and validation of a three dimensional finite element model of whole cervical spine

Cited by 3 publications

References 0 publications

Validation of a C2–C7 cervical spine finite element model using specimen-specific flexibility data

Validation of a C2–C7 cervical spine finite element model using specimen-specific flexibility data

Mixed reality simulation of rasping procedure in artificial cervical disc replacement (ACDR) surgery

Numerical Modelling of the Behaviour of the Cervical Spine under the Effect of a Flexion / Extension

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