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Table 163-2

ASAS Criteria for Peripheral Spondyloarthritisa

Arthritisb Or Enthesitis Or Dactylitis

PLUS EITHER

One or more of the following SpA features:

  • Psoriasis
  • Crohn's disease or ulcerative colitis
  • Preceding infection
  • Uveitis
  • HLA-B27
  • Sacroiliitis on imaging (radiographs or MRI)

OR two or more of the following SpA features:

  • Arthritis
  • Enthesitis
  • Dactylitis
  • Inflammatory back pain ever
  • Family history for SpA

aSensitivity 78%, specificity 82%.

bPeripheral arthritis, usually predominantly lower limb and/or asymmetric. The various SpA features are as defined in Table 163-1 ASAS Criteria for Classification of Axial Spondyloarthritis (To Be Applied for Pts with Back Pain 3 Months and Age of Onset 45 Years)a . Preceding infection refers to preceding gastrointestinal or urogenital infection.

Source: Rudawaleit M et al: The assessment of spondyloarthritis international society classification criteria for peripheral spondyloarthritis and for spondyloarthritis in general. Ann Rheum Dis 70:25, 2011. Adapted by permission from BMJ Publishing Group Limited.