Os peroneum syndrome

The os peroneum syndrome ((sometimes termed painful os peroneum syndrome (POPS)) refers to a wide spectrum of conditions associated with an os peroneum at the lateral aspect of the foot. It can result in tenosynovitis and/or discontinuity of the peroneus longus tendon.

It can include one of more of the following 4

  • acute os peroneum fracture or a diastasis of a multipartite os peroneum,
  • chronic (healing or healed) os peroneum fracture or diastasis of a multipartite os peroneum with callus formation: which can results in a stenosing peroneus longus tenosynovitis
  • attrition or partial rupture of the peroneus longus tendon, proximal or distal to the os peroneum
  • frank rupture of the peroneus longus tendon with discontinuity proximal or distal to the os peroneum
  • presence of a large peroneal tubercle on the lateral aspect of the calcaneus which entraps the peroneus longus tendon and/or the os peroneum during tendon excursion. 

Article information

rID: 76408
Synonyms or Alternate Spellings:
  • Painful os peroneum syndrome
  • Painful os peroneum syndrome (POPS)

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