在轨道地板维修中,网与可生物吸收板相比:对撞生物力学的影响
Minhee Hwang1, Shin Ae Lee2, Chi Hyun Lee3
1Department of Radiology, Pusan National University School of Medicine, Busan, Republic of Korea; Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea.
概括
灵活的,可生物吸收的轨道地板吸收更多的冲击能量,减少眼睛的负载. 这表明,在吹出骨折的重建材料中,要优先考虑一些灵活性而不是刚性.
科学领域:
- 生物材料科学是生物材料的科学.
- 生物力学 生物力学
- 眼科医生 眼科 眼科
背景情况:
- 轨道的地板起到了保护性的作用.
- 吹出来的保险丝.
- 重定向不撞击能量.重定向不撞击能量
- 重建植入物的特性会影响这种保护功能的保存,但定量数据有限.
研究的目的:
- 为了比较不同轨道地板重建植入物在不冲击下的生物力学行为.
- 为了评估可生物吸收板与网的能量吸收和应力分布.
主要方法:
- 用于有限元分析,使用了特定于主体的,CT衍生的头部模型.
- 一个圆柱形撞击器模拟了在重建的轨道地板上以6米/秒的形撞击.
- 测试了三个植入物:聚-L-乳-co-glycolide/β-TCP复合板 (CMP),聚-L-乳-co-glycolide板 (BMP) 和网.
主要成果:
- 在所有重建 (1.80-1.85 MPa) 中,球体应力是相似的.
- 与网 (87.7 MPa,14.2 mJ) 相比,可生物吸收板 (CMP,BMP) 的峰值植入应力显著降低 (2.75-2.83 MPa),并吸收更多的内部能量 (16.5-44.0 mJ).
- 网比可生物吸收的板块向地球传输的能量略多 (3.5%的增长).
结论:
- 符合标准的,可生物吸收的轨道地板有效地分散了植入物内的冲击能量.
- 与刚性植入物相比,这些材料适度地减少了向眼睛传递的负载.
- 轨道地板重建应该考虑保留一些合规性,而不是选择最大的刚性.
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