中国医学科学院北京协和医学院北京协和医院骨科;
目的：探究马方综合征合并脊柱侧凸患者在椎弓根条件较差时采用经肋椎关节置钉技术置入椎弓根螺钉的力学性能。方法：纳入2019年1月至2021年12月北京协和医院收治的12例马方综合征合并脊柱侧凸患者，获取患者的脊柱CT影像资料，使用SurgiPlan AI V1.0软件建立患者脊柱的3D模型，采用传统沿椎弓根置钉技术和经肋椎关节置钉技术模拟置入椎弓根螺钉，记录椎弓根螺钉的直径和长度、置钉节段、置钉凹凸侧、椎弓根螺钉拔出力，并进行比较。结果：模拟传统沿椎弓根置钉技术和经肋椎关节置钉技术分别置入288枚椎弓根螺钉，共576枚。经肋椎关节置钉组的椎弓根螺钉直径和长度均大于传统置钉组（P均<0.05）。随着T1～12节段向下，两组椎弓根螺钉拔出力逐渐变大；经肋椎关节置钉组的椎弓根螺钉拔出力在T1～12节段均大于传统置钉组，除T3和T4节段外，其余各节段两组比较差异均有统计学意义（P均<0.05）。经肋椎关节置钉组的椎弓根螺钉拔出力在脊柱凹侧与凸侧均大于传统置钉组（P均<0.05），两组中脊柱凹侧的椎弓根螺钉拔出力均大于脊柱凸侧（P均<0.05）。结论：对于马方综合征合并脊柱侧凸这类椎弓根条件较差的患者，经肋椎关节置钉技术较传统沿椎弓根置钉技术可以选取更大尺寸的椎弓根螺钉，从而获得更好的力学稳定性。
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基本信息:
DOI：
中图分类号:R687.3
引用信息:
[1]余伟杰,王升儒,杜悠等.马方综合征合并脊柱侧凸经肋椎关节置钉的力学分析[J].中华骨与关节外科杂志,2025,18(03):231-236.
基金信息:
国家重点研发计划项目（2023YFC2507700）