| Objective For maximum achieve functional healing, it is necessary to do the detailed analysis of the material characteristic and stress distribution of the femoral, combined with its anatomical form characteristics, and using the computer and other modern technology. It will be very helpful to design the practical personalized treatment for boon fracture.Methods Femoral CT scan data to dicom formats directly storage. And then convert file format and read in image by Mimics. Determine the threshold for1250-2637Gv, calculated and get the3D models; According to the bone structure CT value, and using related experience formula to be automatic classification definition bony structure of the femoral density, elastic modulus, form the femoral finite element model; Selecting define constraints6node of the femoral underside, and select three node in the femoral head on down150N force, loading and get the solution. And through the post-processing module export stress strain figure, and concluded that the stress data of the selected node.Results Obtained intuitive femoral surface model, femoral finite element model that can be used for mechanical analysis and dates of femoral material.Conclusion Use a CT scan data can be calculated the3D models with the Mimics. According to the CT value of the bone structure could be formation the finite element model. Using finite element model can simulate various pressure on different site, loading and get the solution. According to the mechanical pressure analysis results, help judge different parts fracture lines of force and decided to fixed scheme. |
