Biomechanical & Clinical Study Of The Trauma Of The Proximal Femur

Objective: To introduce an internal fixation of the latest design for peritrochanteric fracture(PF), a new device for clinical application, called Bi-axis Sliding Instrument(BSI); Summary the clinical results of femoral neck fracture treated with dynamic compression screw(DCS). Analyse factors related to the clinical results and the failure of treatment. Methods: Apply BSI to biomechanical tests and clinical test. To retrospectively analyse cases who are treated with DCS and the failure cases of treatment in the femoral neck fracture with internal fixation. Results: BSI has more excellent results in biomechanical testes. BSI and DCS all have satisfied clinical results. Fracture type, reduction quality, age, the time of starting weight carrying are correlated with the prognosis; The failure of treatment in the femoral neck fracture closely related to the pre-operative, operative, post-operative incorrect iatrogenic factors. Conclusion: BSI and DCS can be applied safely widely to clinical. The principles for the treatment of femoral neck fracture are anatomic reduction and rigid fixation and late weight carrying; Pay attention to factors related to the failure of treatment in the femoral neck fracture.