Comperative study of FE models of human femur constructed by different approaches

Abstract eng:
    Methods  for  fully­automatic  generation   of  FE  model  are  shortly discussed in the paper. There are two basic principles of reconstruction, voxel­ based   and   volume­based   methods.   The   voxel   model   generation   is   based   on checking all pixel values and defining  voxels by means of the selected pixels. Development of the volume model is usually divided into three procedures: tissue segmentation, contour  model definition  and surface area definition.  Three FE models of  femur were considered: (i) cortical model (ii) spongio­cortical model with   homogeneous   cancellous   tissue   (iii)   spongio­cortical   model   with heterogeneous cancellous tissue. These models were compared in a simple stress analysis. FE analyses results of all these models are compared with results of experiments conducted using fresh cadaver femur and strain­gauge measurement.

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