INTERNAL FIXATION OF FEMORAL BONE COMMINUTED FRACTURE – FE ANALYSIS

This paper presents finite element analysis of the mechanical stability of some fixation solution often used in treatment of the femoral bone comminuted fractures. In this study we consider two, most popular, fixation devices: neutralization plate and intramedullary nail. Fixation devices were assumed to be made of stainless steel – modelled as elastic material, and bone tissue is modelled using nonlinear viscoelastic material model proposed by Carter and Hayes [1]. This study reveals advantages and disadvantages of analysed fixation devices regarding the stress distribution within the material and hence mechanical stability.