Perumal Venkatachalapathy, Alkire Martha, Swank Michael L
Cincinnati Orthopaedic Research Institute, Cincinnati, Ohio 45249, USA.
Am J Orthop (Belle Mead NJ). 2010 May;39(5):E39-41.
Pain after hip arthroplasty is less likely to be attributed to dermal sensitivity from orthopedic implants. Unexplained persistent pain after hip arthroplasty typically leads to further investigation, occasionally revealing a metal sensitivity. Our case study presents an unusual finding of a delayed type IV cobalt hypersensitivity in a patient several years after use of cobalt in the contralateral hip. Recognition and a high index of suspicion are needed for timely treatment of metal allergy when it presents as persistent pain after hip arthroplasty.
髋关节置换术后的疼痛不太可能归因于骨科植入物引起的皮肤敏感。髋关节置换术后原因不明的持续疼痛通常会促使进一步检查，偶尔会发现金属过敏。我们的病例研究呈现了一个不寻常的发现：一名患者在对侧髋关节使用钴数年之后出现了迟发型IV型钴超敏反应。当金属过敏表现为髋关节置换术后的持续疼痛时，需要认识到这一点并保持高度怀疑，以便及时进行治疗。
