Axial disease in psoriatic arthritis.

  title={Axial disease in psoriatic arthritis.},
  author={Dafna D Gladman},
  journal={Current rheumatology reports},
  volume={9 6},
The definition of axial disease in psoriatic arthritis has varied from isolated unilateral grade 2 sacroiliitis to criteria similar to those used for ankylosing spondylitis. Depending on the definition used, the prevalence of axial disease varies from 25% to 70% of patients with psoriatic arthritis. This article reviews the prevalence, clinical and radiologic features, pathogenesis, prognosis, and treatment of psoriatic spondylitis. 


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