相关实验视频
Updated: Jul 16, 2026

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An In Vitro Organ Culture Model of the Murine Intervertebral Disc
Published on: April 11, 2017
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由粘弹性磁盘生成的磨损颗粒的比较体外分析与2个整体磁盘替换的整体磁盘替换
Kingsley R Chin1,2,3,4,5, Sukanya Chebrolu5, Roger D Sung6
1Less Exposure Spine Surgery Institute (LESS Institute, aka LESS Clinic), Fort Lauderdale, Florida.
The Journal of bone and joint surgery. American volume
|November 24, 2025
概括
AxioMed粘弹性全盘替换器 (VTDR) 的磨损率较低,并且产生比其他设备更大的颗粒,这表明炎症减少和植入器寿命延长. 在广泛的测试中,没有发生机械故障.
科学领域:
- 整形医生生物机械学
- 生物材料科学是生物材料的科学.
- 脊柱外科手术 脊柱外科手术
背景情况:
- 骨科植入物失败通常与磨损碎片有关,特别是在关节关节整形术中.
- 脊椎全盘置换 (TDR) 产生磨损颗粒,微微碎片可能导致骨解和松动.
- 粘弹性TDR (VTDR) 设备是减轻这些风险的新方法.
研究的目的:
- 为了评估AxioMed自由腰椎盘 (FLD) 的磨损特性,一个1件VTDR.
- 将FLD的磨损率和颗粒特性与其他TDR (CHARITÉ和prodisc L) 进行比较.
- 在模拟长期使用后评估FLD的机械完整性.
主要方法:
- 在模拟生理条件下,五个FLD设备经过了3000万次磨损测试.
- 使用扫描电子显微镜和激光衍射分析了磨损碎片.
- 使用了来自FDA提交的CHARITÉ和prodisc L TDR的比较数据.
主要成果:
- 该FLD的平均磨损率为1.7 mg/MC,明显低于前盘L (5.7 mg/MC).
- 与CHARITÉ (0.2μm) 和prodisc L (0.4μm) 相比,FLD产生了更大的平均颗粒大小 (质量平均值:49μm).
- 在300万周期的测试中,FLD设备中没有观察到任何机械故障.
结论:
- 一件式VTDR表现出优越的磨损性能,与接式TDR相比,产生较少的生物反应性颗粒.
- 这些发现表明,FLD的骨质溶解风险可能更低,植入物寿命更长.
- VTDR为运动维护腰椎手术提供了一个有前途的替代方案,需要进一步的临床研究.
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