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水泥粘度和应用时间导致水泥透率和接触表面积的显著变化

Christian Fölsch^1,2, Julia Schirmer², Cosmin Glameanu^1,2

¹Department of Orthopaedics and Orthopaedic Surgery, University Hospital Gießen and Marburg (UKGM), Justus-Liebig-University, Gießen, Germany.

Arthroplasty today

|November 4, 2024

概括

骨水泥应用时间和粘度影响植入物固定. 对外科医生来说,最佳的时间和了解水泥特性对于确保水泥的适当分配和减少植入物松动风险至关重要.

科学领域:

整形外科手术整形外科手术
生物材料科学生物材料科学
医疗设备工程医疗设备工程

背景情况:

骨质水泥的特性,包括粘度和应用时间,极大地影响机械性能和植入物固定.
了解这些因素对于优化骨科手术结果至关重要.

研究的目的:

评估两种不同的骨水泥的不同应用时间对机械性能,水泥间消化和分布的影响.
为了在不同的应用条件下比较高粘度水泥 (Palacos R) 和中低粘度水泥 (Simplex P) 的性能.

主要方法:

使用了一个开放细胞模型与PFC. 用Palacos R和Simplex P.P.进行水泥化的Sigma部托盘.
在制造商规格内的不同时间点应用水泥.
使用计算机断层扫描 (CT) 使用一种新的方法进行量化水泥间位和微运动.

主要成果:

插入力在所有应用时间内都存在显著差异.
水泥透与压力和粘度相反相关.
微运动在Palacos R和Simplex P之间没有显著差异,除了Simplex P在骨接口的增加在3到7分钟之间.
简单P在植入物-水泥接口上表现出空气捕获,随着应用时间的增加而增加.

结论:

随着时间的推移,Palacos R和Simplex P的水泥分布和入量都减少了.
在Simplex P中的空气捕获会影响植入物-水泥接触,这引发了对长期固定的担忧.
外科医生必须考虑水泥粘度和应用时间,以实现最佳的水泥透和表面接触,可能减少植入物松动.

关键词:

应用压力水泥应用压力水泥无菌松动的小腿骨关节整形术水泥形态膝盖关节整形膝盖关节整形水泥粘度和入的情况.接口水泥植入物植入物的界面微运动骨托盘

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