Abstract
Rheumatoid pathology of the articular apparatus is a significant social problem due to the high incidence of disability. Cases of the development of arthropathy after SARS-CoV-2 infection have been described. The basis of the pathogenesis of this condition may be the excessive synthesis of pro-inflammatory cytokines (cytokine storm), which is characteristic of the acute course of COVID-19. In patients with a severe form of the coronavirus infection, a high concentration of a number of cytokines IFN-γ, IL-1, IL-6, IL-12, and TGFβ was observed. Due to the activation of osteoclasts, resorptive processes in bone tissue were significantly enhanced. Autoimmunization due to cross-reactivity of the virus can also lead to joint damage. Reactive arthritis tends to be acute and occurs in the form of monoarthritis or oligoarthritis. The pathological process develops mainly in the joints of the wrist, ankles, and small joints of the distal parts of the limbs.
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