Examination of 7 cases of pseudogouty arthritis with bilateral simultaneous arthritis

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  • 両側同時に関節炎を生じた偽痛風性関節炎7例の検討

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<p> Seven (13.7%) of 51 patients with pseudogout arthritis at our hospital had pseudogout arthritis of both knees. All of the 7 patients were female, with a mean age of 81 years.</p><p> I propose the following mechanism to explain simultaneous pseudogout attacks of both knees: The meniscus is damaged by trauma or aging, leading to the deposition of calcium pyrophosphate crystals in the damaged area; in addition, decreased calcium concentration in the blood or synovial fluid triggers the precipitation of calcium pyrophosphate crystals in the synovial fluid, thereby causing arthritis.</p>

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