Oliveira Catarina A, Candelária Isabel S, Oliveira Pedro B, Figueiredo Antonio, Caseiro-Alves Filipe
Medical Imaging Department and Faculty of Medicine, University Hospital of Coimbra, Portugal.
Orthopedics Department, University Hospital of Coimbra, Portugal.
Eur J Radiol Open. 2014 Nov 28;2:3-6. doi: 10.1016/j.ejro.2014.11.001. eCollection 2015.
Although the real actual incidence of metallosis is unknown, it is described as a rare diagnosis with a 5% estimated incidence in the hip prosthetic replacements. The adoption of non-metallic articular prosthetic devices, made of polyethylene and ceramic, is the main reason to the diminishing number of reported cases. We present a case of metallosis with a clinical systemic presentation in a patient with a non-metallic hip prosthesis, which occurred due to a fracture of the acetabular liner component, leading to abnormal metal-metal contact. The metallic debris leads to a massive local and systemic release of cytokines. Revision is necessary whenever osteolysis and loosening of the prosthesis occur. Imaging evaluation, especially CT, has a central role in diagnosis and planning the surgical treatment.
虽然金属沉着病的实际发病率尚不清楚，但它被描述为一种罕见的诊断，在髋关节假体置换中的估计发病率为5%。采用由聚乙烯和陶瓷制成的非金属关节假体装置是报告病例数量减少的主要原因。我们报告一例非金属髋关节假体患者出现临床全身表现的金属沉着病病例，该病例是由于髋臼衬垫部件骨折导致异常的金属-金属接触所致。金属碎屑导致细胞因子大量局部和全身释放。每当假体出现骨溶解和松动时，就需要进行翻修。影像学评估，尤其是CT，在诊断和规划手术治疗中起着核心作用。
