Study on efficacy and biomechanical effect of interlocking intramedullary nail in the treatment of femoral shaft fracture

Objective: To observe the efficacy of interlocking intramedullary nail in the treatment of femoral shaft fracture.Methods: 88 patients who were locked by intramedullary nail in the treatment of femoral shaft fracture in our hospital from March 2008 to April 2010 were retrospectively analyzed,and patients with AO steel plate internal fixation at the same time were randomly selected.the Efficacy and biomechanical effect of the two groups were compared Results: The operative time,hospitalization time,bone healing time,blood loss,and other aspects of the two groups had significantly different(P0.05,P0.01);interlocking intramedullary nail had advantage in dynamic and static pressure of the role,to minimize the stress shielding effect,and it was more firmly fixed.Conclusion: Interlocking intramedullary nail has advantage in simple operation and stable internal fixation.It plays a role in a compression fracture and the strong anti-load effects,have a good anti-rotation effect in that the femoral neck fracture and is fixed more firmly to improve the healing rate.