张文辉 张媛媛 刘杰

    [摘要] 目的 本研究将新置钉方式与常规置钉方式作比较，为新置钉方式的应用提供依据。 方法 收集我院2018年12月至2019年12月我院收住的胸腰椎骨折手术患者57例，分为常规置钉组和新置钉组，两组为同一批患者，常规置钉组依次置入一侧椎弓根钉、固定棒、尾帽连接，之后再依次置入另一侧直至拧紧。新置钉组在常规置钉结束后，按照常规置钉顺序再拧一次原本已经拧紧的双侧螺钉尾帽。比较两种置钉方式结束后尚可进一步拧紧的松动螺钉数量及松动率。 结果 常规置钉方式结束后有91侧的螺钉松动，可进一步拧紧，松动率为79.82%，新置钉方式结束后有2侧的螺钉松动，松动率为1.75%，两组松动侧数和松动率比较，差异有统计学意义(P<0.05)。 结论 相较于常规置钉方式，新置钉方式可明显减少术中松动螺钉数量，降低松动率，值得临床推广使用。

    [关键词] 椎弓根钉;松动率;胸腰椎骨折;置钉方式

    [Abstract] Objective To compare the new screw placement with the conventional screw placement and provide the basis for the application of the new screw placement. Methods A total of 57 patients who underwent thoracolumbar fractures operation in our hospital from December 2018 to December 2019 were collected， and they were divided into the conventional screw placement group and the new screw placement group. In the conventional screw placement group， one side of pedicle screw， fixation rod and tail cap were inserted successively， and then the other side was inserted until it was tightened. In the new screw placement group ......