Objective: To investigate the expression of BMP-2 in gunshot fracture healing.

目的：研究火器伤骨折的愈合及BMP - 2的表达。

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Objective: To research the bacteriological feature and the effect of vary fixation on infection in gunshot fracture.

目的：探讨火器伤骨折的细菌学特点和不同治疗方法对火器伤骨折感染的影响。

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Results: Bone union came into being 4 weeks after operation in the gunshot fracture group, while 3 weeks in the control group.

结果：兔股骨火器性骨折术后4周达到骨性愈合，而普通骨折术后3周达到骨性愈合。

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