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由于聚乙基 (PEEK) 链部件导致远端股骨巨型假肢的机械故障

Omri Merose^1,2, Shai Factor^3,4, Yair Gortzak^1,2

¹Division of Orthopedic Surgery, Tel Aviv Medical Center, 6 Weizmann St, Tel Aviv, 6423906, Israel.

Archives of orthopaedic and trauma surgery

|April 20, 2024

概括

距离大腿骨重建中的聚乙乙 (PEEK) 链显示出高失败率,特别是在男性和较重的患者中. 故障与周期性负载引起的和骨折有关.

科学领域:

整形外科手术整形外科手术
生物材料科学是生物材料的科学.
机械工程机械工程

背景情况:

由于其特性,聚乙乙 (PEEK) 被青用于骨科植入物.
在基于PEEK的链中观察到高失败率,用于远距离大腿骨重建.
本研究研究了PEEK链在这个特定应用中的故障.

研究的目的:

在基于PEEK链的远端股骨重建中评估植入物失败的发生率.
分析与PEEK链故障相关的机制和临床发现.
确定导致PEEK链故障的患者特定因素.

主要方法:

对56名接受用PEEK Optima链进行远端股骨重建的患者进行了回顾性队列研究 (2004-2018).
包括临床数据审查和生物力学故障分析.
对失败率的统计分析,失败的时间,以及与患者人口统计和体重的相关性.

主要成果:

观察到37.5% (21/56名患者) 的显著失效率,平均失效时间为63.2个月.
在男性和女性之间,PEEK链生存分布有显著差异 (p=0.005).
患者体重增加与更高的失败风险显著相关 (p=0.031).

结论:

距离大腿骨重建中的PEEK链失败与患者的体重和男性性别相关.
失效机制包括周期性负载引起的和微观骨折,导致不稳定.
建议进一步评估PEEK关节元件与重载应用中的金属相对应的情况.

关键词:

生物机械故障发生 Femur 重建腿骨的重建皮克皮克 (Peek Peek) 是一种古老的风格.聚烯----基是一种聚烯.假肢假肢是一种假肢.

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