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The Establishment of Femoral Condyle Finite Element Model and Biomechanical Study on the Condyle after Simulating Different Resection of the Surface Cartilage

Author: TianYouYong
Tutor: ZhangYongHong
School: Shanxi Medical
Course: Orthopedics
Keywords: Femoral condyle Surface of the cartilage Three-dimensional model Finite Element Analysis Biomechanics
CLC: R687.3
Type: Master's thesis
Year: 2010
Downloads: 50
Quote: 3
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Abstract


Purpose of using magnetic resonance images (MRI) to establish normal femoral condyle cartilage surface dimensional nonlinear finite element model , by giving the reference values ??of different mechanical stress contours condyle measured stress values ??specified node to verify the validity of the model ; and use this model to further simulate removal condyle different sizes , different regions of the femoral condyle cartilage after mechanical impact of changes in a preliminary study . Methods a normal young men , excluding knee disorders , the use of 1.5T Twinspeed / Excite superconducting magnetic resonance scanner right knee continuous sagittal MRI scan , scan mode right knee from the inside out uninterrupted scanning. The resulting scanned image after Mimics10.0, Geomagic Studio 8.0 analysis software processing include establishing femoral condyle cartilage surface of the full three-dimensional model , and Geomagic Studio 8.0 software processing generated STL file into the finite element analysis software ANSYS 11.0 IGS acceptable files. Will build a good model into ANSYS11.0 meshing and modeling software for different sizes in different regions of cartilage resection , and stress distribution were compared. Results using the MRI image , after Mimics10.0, Geomagic Studio 8.0 software processing to establish a human right knee femoral condyle of the three-dimensional computer model of the surface of the femoral condyle cartilage late FEM analysis provides a guarantee. ANSYS 11.0 software using the femoral condyle cartilage surfaces of different sizes in different regions of simulated resection, and draw out of the condyle under various simulated load stress strain graph. Conclusion 1 results suggest that two-dimensional MRI images were created under the three-dimensional model to solve the CT data for soft tissue imaging poor enough to make the model closer to the real anatomy . 2 , this experiment created a three-dimensional finite element model for the static model , the actual human knee condyle anatomy very similar analysis can be a good stress situation condyle . 3 , the design of related mechanical analysis are static simulation results to predict femoral condyle surface of the femoral condyle cartilage Ministry 's role and mechanics distribution provides a reference .

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CLC: > Medicine, health > Surgery > Orthopaedic Surgery ( movement system diseases,orthopedic surgery ) > Orthopedic surgery and surgery > Bone surgery
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