Causes of sacroiliitis - symmetric vs asymmetric (mnemonic)

Changed by Matt Adams, 3 Mar 2021

Updates to Article Attributes

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A mnemonic for remembering the symmetric vs asymmetric causes of sacroiliitis is:

  • PAIR

Mnemonic

The outside letters P & R (letters are far apart) are the asymmetric causes and the inside letters A & I (letters are close together) are the symmetric causes. 

(This mnemonic was developed by Dr Joe Donahue)

  • -<p>A <strong>mnemonic</strong> for remembering the <strong>symmetric vs asymmetric</strong> <strong>causes of </strong><a href="/articles/sacroiliac-joint-disease-differential">sacroiliitis</a> is:</p><ul><li><strong>PAIR</strong></li></ul><h4>Mnemonic</h4><ul>
  • +<p>A <strong>mnemonic</strong> for remembering the <strong>symmetric vs asymmetric</strong> <strong>causes of </strong><a href="/articles/sacroiliitis-differential">sacroiliitis</a> is:</p><ul><li><strong>PAIR</strong></li></ul><h4>Mnemonic</h4><ul>
  • -<strong>A: </strong><a href="/articles/ankylosing-spondylitis">ankylosing spondylitis</a>
  • +<strong>A: </strong><a href="/articles/ankylosing-spondylitis-1">ankylosing spondylitis</a>
  • -<strong>R: </strong><a href="/articles/reactive-arthritis">reactive</a> (e.g. <a href="/articles/reactive-arthritis">Reiter syndrome</a>)</li>
  • +<strong>R: </strong><a href="/articles/reactive-arthritis">reactive</a> (e.g. <a href="/articles/reactive-arthritis">Reactive arthritis, formerly Reiter syndrome</a>)</li>

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