Fixation of periarticular fractures of proximal femur on biomechanical basis

In the work comparison of two methods of pertrochanteric fracture fixation has been carried out: external one, with the help of the transosseous device and immersed one, by the dynamic femoral system. The investigation of the process of dislocation of fragments has been done on biophantomes. The dynamic compression in the external fixation device increases stability of the biomechanical system «bone-fixator» in 3-4 times. The use of single-stage fracture compression with dynamic femoral system allows to create stable fixation of fragments, adequate for early mobilization of patients