混凝土复合流动性结构在非混凝土复制的acetabular组件中
Jacob M Wilson1, Robert T Trousdale1, Nicholas A Bedard1
1Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA.
The bone & joint journal
|March 31, 2024
概括
这项研究表明,在修复整部关节整形术 (THA) 期间将双流动性 (DM) 杯子结到非化骨外中,可以提供良好的植入物存活和固定,尽管位仍然是一个风险.
科学领域:
- 整形外科手术 整形外科手术
- 生物材料工程 生物材料工程
- 关节塑造研究 关节塑造研究
背景情况:
- 脱位是修复全关节整形术 (THA) 的主要并发症.
- 双流动性 (DM) 轴承降低了脱位风险,但在非水泥的情况下,选择是有限的.
- 一种技术涉及将单块DM杯结到一个未化的acetabular shell中.
研究的目的:
- 为了评估植入物存活率,并发症,以及在修改THA过程中将DM杯凝固到非凝固的acetabular外中的放射性结果.
- 在复杂的案例中评估这种构造的可行性和有效性.
主要方法:
- 在65个部 (64名患者) 的回顾性审查中,在2018-2020年期间使用这种技术进行了THA修订.
- DM杯被凝固到非凝固的外中 (新的或保留的).
- 卡普兰-梅尔生存分析和放射性评估进行了平均2年后续.
主要成果:
- 无无菌性DM修订和脱位的两年生存率为92%.
- 发生了9次修订:3次是感染,3次是无菌松动,2次是脱位,1次是结构故障.
- 发生了五次手术后脱位,主要发生在先前不稳定或吸收器缺陷的患者中.
结论:
- 将DM杯结成非的外是修改THA的一个可行的选择,最大限度地提高头部尺寸和优化组件位置.
- 这种技术证明了良好的植入物固定,在接口上只有一次故障.
- 虽然位风险降低了,但并没有消除,特别是在高风险患者中.
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