Pelvic Pseudotumor Associated With a Ceramic Bearing Total Hip.

Jaskaran Singh, Arash Panahifar, Roman Chernikov, William N Dust
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Abstract

Pseudotumors have been well documented to occur most frequently in metal-metal bearing total hip arthroplasties and less frequently in metal-polyethylene bearings. There are few cases in the literature of pseudotumors occurring in ceramic-ceramic articulations. We report a case of a large pelvic pseudotumor in a patient with a ceramic-ceramic bearing articulation in a 67-year-old man. In addition to the usual investigations, we did a detailed wear analysis of the ceramic implants and an examination of the soft tissues for particulate debris. The detailed wear analysis did show evidence of stripe wear; however, the volumetric wear was within the expected range. Synchrotron imaging identified strontium and zirconium debris arising from the ceramic surfaces. Although association does not mean causation, no other cause for the large pseudotumor could be identified and presumably represents an idiosyncratic reaction to ceramic debris.

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与陶瓷轴承全髋关节相关的骨盆假瘤
有大量文献证明,假瘤最常发生在金属-金属轴承全髋关节置换术中,而较少发生在金属-聚乙烯轴承中。在文献中,陶瓷-陶瓷关节发生假瘤的病例很少。我们报告了一例骨盆假瘤病例,患者为一名 67 岁的男性,使用的是陶瓷轴承关节。除了常规检查外,我们还对陶瓷植入物进行了详细的磨损分析,并检查了软组织中的颗粒碎片。详细的磨损分析确实显示了条纹磨损的迹象,但体积磨损在预期范围内。同步加速器成像确定了陶瓷表面产生的锶和锆碎片。虽然相关性并不意味着因果关系,但无法确定造成巨大假瘤的其他原因,这可能是对陶瓷碎片的一种特殊反应。
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来源期刊
CiteScore
2.60
自引率
6.70%
发文量
282
审稿时长
8 weeks
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