经过两年的试验:简化宫盘的现实世界失败机制
Matthew Scott-Young1,2, Scott Blumenthal3,4, Todd Lanman5,6
1Gold Coast Spine, Southport, Australia. MScott-Young@goldcoastspine.com.au.
概括
简化宫盘显示有关磨损和故障模式,包括PEEK磨损和分层,导致骨解. 对ACDF的修复手术提供了有利的结果,强调了需要仔细选择患者的必要性.
科学领域:
- 脊柱外科手术 脊柱外科手术
- 生物材料科学是生物材料的科学.
- 医疗器械分析 医疗器械分析
背景情况:
- 宫全盘置换 (TDR) 旨在保持运动并减少相邻段变性,与前椎间盘切除和融合 (ACDF) 相比.
- 简化宫盘 (PEEK-on-ceramic与涂层末板) 早期表现有希望,但面临着关于长期耐用性和生物兼容性的担忧.
- 新出现的数据表明,与Simplify盘相关的设备故障和修复手术的增加.
研究的目的:
- 通过FDA MAUDE报告和文献,调查简化宫盘的故障机制.
- 为了比较现实世界的故障模式与临床前测试数据.
- 为了评估Simplify盘子并发症的修复手术后的临床结果.
主要方法:
- 对96份FDA MAUDE不良事件报告进行分析,用于Simplify盘.
- 关于PEEK-on-ceramic磨损和涂层脱层的文献审查.
- 对ACDF修订的临床病例的检查和检索设备的组织学评估.
主要成果:
- 马德报告了详细的并发症,包括骨解,迁移,疼痛和检索问题.
- 组织学揭示了PEEK,和的磨损碎片引起的炎症反应和骨解.
- 试验室磨损率显著 (0.7-2.1 mm3/Mc),由涂层分层加剧,导致现实世界的故障.
结论:
- 简化磁盘展示了有关故障模式 (PEEK磨损,分层,骨解) 的问题,这些问题在实验室测试中无法完全预测.
- 这些差异凸显了临床前模拟预测体内性能的局限性.
- 市场后监测,注册和长期研究至关重要;谨慎的选择和修订准备至关重要.
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