经皮手术治疗骶髂关节损伤的临床解剖学数字化研究

目的]研究CT扫描三维重建技术对于骶髂关节骨折进行闭合手术治疗的术前指导作用。方法]选择30个骶髂关节,均行X线片和螺旋CT三维重建后,随机分为3组,每组10个关节。A组:根据CT数据资料于M in ics软件指导下行骨折克氏针固定;B组:于电视X线机下行骨折克氏针固定,根据X线片和螺旋CT资料行骨折克氏针固定。固定后通过生物力学和大体剖面观察,评价不同组间生物力学和解剖学效果。结果]A、B 2组在力学强度和解剖位置方面均优于C组,差异均有统计学意义(P<0.05),A组和B组在力学强度和解剖位置方面差异不显著(P>0.05)。结论]Minics软件及三维重建技术可以很好的指导骶髂骨折的手术操作。

Study of software minics for the operation on sacroiliac fracture

Objective]To observe the guidance effect of software Minics for the operation on sacroiliac fracture.Method]30 models of articulatio sacroiliaca were detected by X-ray and helical CT to three-reconstruction and divided into three groups randomly,each group had 10 models.The fractures of group A were fixed by K-wires screws according to direction of software Minics on data of helical CT.The fracrures of group B were fixed by K-wires screws guided by video X-ray equipment.And thoes group C were fixed by K-wires screws according to the direction X-ray and helical CT.the fixation effects were estimated by biomechanical and anatomy index.Result]There were significant differences between groups A,B and group C on the mechanical intensity and anatomy location(P<0.05),and there were no significant differences between groups A and B(P>0.05).Conclusion]Software Minics can be used for the instruction of operation on sacroiliac fracture.