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磁盘水泥用于腰部锁定体间凝固的生物机械效应:有限元移动性分析和碎片清除回设计

Kung-Chia Li¹, Che-Wei Liu², Yu-Kun Xu³

¹Yang Ming Hospital / No. 252, Wufeng N. Rd., East Dist., Chiayi City 600016, Taiwan.

Clinical biomechanics (Bristol, Avon)

|December 9, 2025

概括

与标准钻头相比,一种新型的3D打印器显著改善了磁盘碎片的去除,提高了脊髓融合程序中的凝固稳定性. 这种进步确保了更好的-水泥接口,并减少了脊柱运动.

科学领域:

脊柱外科手术脊柱外科手术
生物医学工程生物医学工程
整形外科的研究研究.

背景情况:

在体间凝固前,有效地去除磁盘碎片至关重要,以优化水泥体积并降低流动阻力.
目前使用标准钻头的方法可能无法有效地清除形盘材料,这可能会损害凝固结果.

研究的目的:

评估不同尺寸的磁盘水泥对脊柱运动的生物力学影响.
开发和评估一款新型3D打印的回收器,旨在在脊柱手术期间提升废物清除效果.

主要方法:

使用有限元骨模型分析不同水泥尺寸对磁盘移动性的生物力学影响.
一个新的3D打印的刀,具有专门的切削边缘 (分阶段,刺刺,多层) 和配置文件 (螺旋,形) 被设计为优越的碎片清除.
生物机械和临床试验比较了新型回器和使用合成和患者衍生的磁盘的标准钻头之间的碎片清除效率.

主要成果:

通过更高效的碎片清除来实现更大的水泥容量,导致更稳定的子水泥基础,并减少了约23.8%的斜和冠状脊柱运动.
通过3D打印的回器平均去除了926.28 ± 49.71毫克的合成盘碎片,远远超过标准钻头63.04 ± 4.86毫克 (p < 0.01).
器的分层和刺刺的特征有效地保留了圆盘材料,与标准钻头不同,这些钻头表现出不良的碎片保留.

结论:

为了达到足够的水泥填充 (大约6毫升的5毫米) 需要有效地去除磁盘材料.
一个更大的水泥填充增强了-水泥接口在脊柱融合中的稳定性.
由于其创新的设计,与传统钻头相比,3D打印的回机显示出更高的碎片清除效率.

关键词:

混凝土磁盘塑造技术是如何进行的退行性腰部退行性腰部退行性有限元素分析的研究.身体间的凝固凝固.在 Reamer 中使用 Reamer.

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