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六角化对骨水泥 (聚甲基甲酸) 的机械性能的影响

Ali Perçin¹, Aliekber Yapar, Mehmet Ali Tokgöz

¹Cizre Devlet Hastanesi Ortopedi ve Travmatoloji Kliniği, 73200 Cizre, Şırnak, Türkiye. alipercin1903@gmail.com.

Joint diseases and related surgery

|May 10, 2024

概括

在低度中将六角化 (HBN) 添加到聚甲基甲酸盐 (PMMA) 骨质水泥中,可以提高机械强度而不会增加孔隙性. 较高的HBN度会损害骨的性能.

科学领域:

生物材料科学生物材料科学
骨科材料工程骨科材料工程

背景情况:

聚甲基甲酸盐 (PMMA) 骨头水泥在骨科手术中广泛使用.
提高骨水泥的机械性能和微型架构对于植入物寿命和患者的结果至关重要.

研究的目的:

研究不同度的六角化 (HBN) 对PMMA骨的机械性能和微观结构的影响.
为了确定HBN的最佳度,以提高骨质水泥性能.

主要方法:

用四种不同度的HBN (0.5g,1g,1.5g,2g) 制备PMMA骨质水泥样本.
在模拟的手术室条件下评估了机械性能,包括压缩强度 (MPa).
评估了微型架构,特别是孔隙性,以了解结构变化.

主要成果:

低度的HBN (0.5g) 显著增加了PMMA骨的机械强度,特别是在压缩试验中.
较高的HBN度 (2g) 导致强度降低和多孔性增加.
在HBN的最佳低度 (0.5g) 的情况下,孔隙性保持不变.

结论:

低度的HBN (0.5g/40gPMMA) 提高了机械强度,而不会对孔隙性产生负面影响.
高度的HBN由于孔隙性增加而损害了生物机械性能.
在骨科应用中,HBN显示出作为骨水泥的有益添加剂的前景.

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