Magnetic Resonance Imaging (MRI) Based Finite Element Modeling for Analyzing the Influence of Material Properties on Menisci Responses

2014 ◽  
Vol 553 ◽  
pp. 305-309 ◽  
Author(s):  
Ke Ke Zheng ◽  
Jun Ning Chen ◽  
Corey Scholes ◽  
Qing Li
Keyword(s):  
Magnetic Resonance Imaging ◽  
Finite Element ◽  
Magnetic Resonance ◽  
Knee Joint ◽  
Compressive Loading ◽  
Nonlinear Material ◽  
Resonance Imaging ◽  
Element Analysis ◽  
Linear Elastic ◽  
Magnetic Resonance Imaging Mri

To investigate the importance of the meniscal non-linear behaviour on knee joint finite element analysis (FEA) study, the aim of this study was to compare linear elastic and nonlinear hyperelastic material models on the pressure distribution of meniscus. For this purpose, a 3D finite element (FE) knee model of a healthy living subject was constructed from magnetic resonance imaging (MRI) to simulate contact pressure under axial compressive loading. Differences in meniscal contact pressures were observed between linear elastic and nonlinear hyperelastic models. These findings emphasize the importance of accounting the nonlinear material behaviour of the menisci in knee joint FEA studies.

Finite Element Modeling of Knee Joint Contact Pressures and Comparison to Magnetic Resonance Imaging of the Loaded Knee

2003 ◽  
Author(s):  
Jiang Yao ◽  
Art D. Salo ◽  
Monica Barbu-McInnis ◽  
Amy L. Lerner
Keyword(s):  
Magnetic Resonance Imaging ◽  
Finite Element ◽  
Magnetic Resonance ◽  
Knee Joint ◽  
Material Properties ◽  
Three Dimensional ◽  
Resonance Imaging ◽  
Three Dimensional Model ◽  
Model Predictions

A finite element model of the knee joint could be helpful in providing insight on mechanisms of injury, effects of treatment, and the role of mechanical factors in degenerative conditions. However, preparation of such a model involves many geometric simplifications and input of material properties, some of which are poorly understood. Therefore, a method to compare model predictions to actual behaviors under controlled conditions could provide confidence in the model before exploration of other loading scenarios. Our laboratory has developed a method to apply axial loads to the in vivo human knee during magnetic resonance imaging, resembling weightbearing conditions. Image processing algorithms may then be used to assess the three-dimensional kinematics of the tibia and femur during loading. A three-dimensional model of the tibio-menisco-femoral contact has been generated and the image-based kinematic boundary conditions were applied to investigate the distribution of stresses and strains in the articular cartilage and menisci throughout the loading period. In this study, our goal is to investigate the contact patterns during long term loading of up to twenty minutes in the healthy knee. Specifically, we assess the use of both elastic and poroelastic material properties in the cartilage, and compare model predictions to known loading conditions and images of tissue deformations.

Pictorial Magnetic Resonance Imaging Findings in Common Sports Injuries of Knee

2016 ◽  
Vol 50 (3) ◽  
pp. 151-155 ◽  
Author(s):  
Anindita Sinha ◽  
Mandeep Dhillon ◽  
Mahesh Prakash
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Knee Joint ◽  
Sports Injuries ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
The Common ◽  
Magnetic Resonance Imaging Mri

ABSTRACT Magnetic resonance imaging (MRI) is often modality of choice to evaluate the sports related injuries involving knee joint. It is important for the clinicians to identify the common injuries pattern seen on MRI for quick management. How to cite this article Prakash M, Sinha A, Dhillon M, Khandelwal N. Pictorial Magnetic Resonance Imaging Findings in Common Sports Injuries of Knee. J Postgrad Med Edu Res 2016;50(3):151-155.

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