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在具有双流动性的关节假肢的无症状患者中,金属工件减少序列-MRI异常

Nathanael D Heckmann¹, Brian C Chung¹, Kevin C Liu²

¹Department of Orthopaedic Surgery, Keck Medical Center of the University of Southern California, Los Angeles, California, USA.

The bone & joint journal

|February 29, 2024

概括

在关节整形术 (THA) 后,在模块化双流动性 (DM) 关节的患者中,带有血清含量升高的周围假肢液体收集不常见. 由于植入物可变性,需要进一步调查.

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
放射学放射学是一门学科.

背景情况:

模块化双流动性 (DM) 关节在关节整形术 (THA) 中越来越多地被使用.
对于DM关节中的金属层的模块化存在担忧.
对金属碎片的潜在不良反应需要进行调查.

研究的目的:

为了将金属人工物减少序列 (MARS) -MRI发现与血清金属离子水平相关联.
评估DM关节患者MARS-MRI异常的发生率.
评估血清,和水平与MRI发现之间的关系.

主要方法:

研究了一组45名患有模块化DM关节的患者 (50部) 的队列,平均随访时间为3.7年.
患有无症状,原发性THA和DM关节的患者在至少两年后接受了MARS-MRI.
收集了血清金属离子水平 (,,) 和患者报告的结果.

主要成果:

两名患者 (4.4%) 在MARS-MRI上表现出异常的周围假肢液体收集,血清含量>3.0μg/l.
四名患者 (8.9%) 在MARS-MRI检测中发现了较大的三角管囊炎,所有患者的含量都低于1.0μg/l.
在没有MARS-MRI异常的38名患者中,97.4%的含量低于1.0μg/l.

结论:

在无症状的DM关节中,与血清含量升高相关的异常周围假肢液体收集是不常见的 (4.4%).
植入物异质性需要对这些发现进行进一步评估.
该研究强调了监测血清金属离子水平与DM关节的THA患者的成像相关的监测的重要性.

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