The Improvement of a Distraction Osteogenesis Apparatus in Rabbit Femur and Its Application in the Construction of Animal Model

Abstract：Objective To improve the apparatus of rabbit femur osteogenesis model and evaluate the effect in the es-tablishment of animal model.Methods We improved and optimized the fixation and distraction mode of femoral trac-tion device.And a new type of femoral traction device was designed.The improved femoral distraction osteogenesis ap-paratus were applied to femurs of 1 6 New Zealand rabbitsThe fixation stability was osberved.X-ray examination was taken in 1st day and 3rd week of distraction period ,second and 4th week after distraction,to evaluate the effect of dis-traction osteogenesis.Results All improved distractor can rigid fixed on rabbit femur and distraction could be precisely managed.The effect was ideal to improve distractor on rabbit femur distraction osteogenesis.Conclusion This improved distraction osteogenesis apparatus is a kind device with the advantages as simple structure,light-weight,easier to oper-ate,firm fixation,and clear pulling effect It can be applied to establish rabbit femur distraction osteogenesis model.