从使用双重抗生素加载的骨水泥间隔器中增强抗生素释放,使用高度的万科米辛,在围围假肢关节感染的两阶段修订中
Andre Lunz1, Mareike Schonhoff2, Georg W Omlor3
1Department of Orthopaedics, Heidelberg University Hospital, Schlierbacher Landstr. 200a, 69118, Heidelberg, Germany. andre.lunz@med.uni-heidelberg.de.
International orthopaedics
|August 11, 2023
概括
在Palacos R+G骨头水泥中手动添加万科米辛,可以提供最佳的抗生素释放. 较高的度和较短的间歇期可增强抗生素从骨隔离器中的化.
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
- 传染病管理 传染病管理
背景情况:
- 带有抗生素的骨水泥间隔器对于提供高局部抗生素度,保存骨和最大限度地减少软组织收缩至关重要.
- 优化间隔器准备对于最大限度地释放治疗性抗生素和改善骨科感染患者的治疗结果至关重要.
研究的目的:
- 为了比较各种骨水泥间隔剂制剂的抗生素释放概况.
- 确定影响抗生素化的可修改因素,并确定最优的制备方法.
主要方法:
- 通过使用三个不同的骨水泥和手动添加抗生素,创建了六种不同的骨水泥间隔剂制剂.
- 抗生素释放量在六周内使用化学发光免疫测试在十个预先确定的时间点量化.
- 测量了万科米辛和 gentamicin 释放量,研究了不同抗生素度和骨质水泥类型.
主要成果:
- 每40克帕拉科斯R+G水泥中手动添加4克万科米辛,证明了最有利的释放特征.
- 在6周的研究期间,所有制剂的抗生素释放都显著下降.
- 较高度的万科米辛导致累积的万科米辛释放显著增加,而对 gentamicin 的影响则有所不同;骨类型显著影响了释放.
结论:
- 外科医生应该手动将高度的抗生素纳入最适合的骨质水泥中,以加强释放.
- 建议尽量减少间隔器准备和植入之间的过渡期,以最大限度地提高抗生素化率.
- 该研究特别建议每40克先前混合的帕拉科斯R + G的4克万科米辛手动加入,以获得最佳的间隔器性能.
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