Analysis of the Biomechanical Behavior of Osteosynthesis Based on Intramedullary Nails in Femur Fractures

Abstract Femoral shaft fractures are among the most prevalent fracture type, representing around 13% of total skeleton fractures. In addition, they are associated with high morbidity and mortality; consequently, they are among the most severe injuries of the skeleton. The most appropriate treatment depends on the type of fracture and location level. Intramedullary (IM) nailing is a common technique that is universally accepted to treat femoral diaphyseal fractures (zones 2 to 5 according to Wiss’ classification). Nevertheless, the treatment of fractures located in the distal third remains a controversial issue. Even if IM treatment is indicated, there are many types of nail geometries and materials, combinations of screws for stabilization, etc. Finite element analysis can be used for determining the most appropriate system. This can help surgeons to choose the best osteosynthesis in each case.