Özet:

Long bones such as the femur and tibia can be broken from the shaft region due to impact, oandrload, etc.. The fracture region has to be fixed stably in order to heal the fracture. However, it is not known which of these two implants is more successful mechanically. Plates and intramedullary nails are frequently used for this fixation. The aim of this study was to evaluate the use of plates and intramedullary nails used in femur shaft fractures mechanically. The finite element method, which is frequently preferred, has been used as a method to examine the stresses on the modelled bone and implants. The bone and implants were created and combined with each other according to surgical procedure. 750 N force was applied to the femur head and the distal end of the femur was fixed. Three finite element models were created, including the intact femur model. The strain distributions on the femur intact femur were taken as reference. The strain values on the femur and the maximum von Mises stress values on the implants were examined to evaluate the results. In addition, the stress values in the fracture line were also taken into consideration to evaluate the results. In conclusion, the use of intramedullary nails in femur shaft fractures was found to be more successful in terms of stress shielding.

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