Citation, DOI, disclosures and article data
Citation:
Weerakkody Y, Knipe H, Baba Y, et al. Os peroneum syndrome. Reference article, Radiopaedia.org (Accessed on 30 Mar 2025) https://doi.org/10.53347/rID-76408
Disclosures:
At the time the article was last revised Henry Knipe had the following disclosures:
- Integral Diagnostics, Shareholder (ongoing)
- Micro-X Ltd, Shareholder (ongoing)
These were assessed during peer review and were determined to
not be relevant to the changes that were made.
View Henry Knipe's current disclosures
Os peroneum syndrome, also known as 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 fibularis longus tendon.
It can include one or more of the following 4:
acute os peroneum fracture or 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 result in stenosing tenosynovitis of the fibularis longus
attrition or partial rupture of the fibularis longus tendon, proximal or distal to the os peroneum
frank rupture of the fibularis 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 fibularis longus tendon and/or the os peroneum during tendon excursion
Differential diagnosis
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1. Chagas-Neto F, de Souza B, Nogueira-Barbosa M. Painful Os Peroneum Syndrome: Underdiagnosed Condition in the Lateral Midfoot Pain. Case Rep Radiol. 2016;2016:8739362. doi:10.1155/2016/8739362 - Pubmed
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2. Bianchi S, Bortolotto C, Draghi F. Os Peroneum Imaging: Normal Appearance and Pathological Findings. Insights Imaging. 2017;8(1):59-68. doi:10.1007/s13244-016-0540-3 - Pubmed
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3. Oh S, Kim Y, Kim S, Kim M. Painful Os Peroneum Syndrome Presenting as Lateral Plantar Foot Pain. Ann Rehabil Med. 2012;36(1):163-6. doi:10.5535/arm.2012.36.1.163 - Pubmed
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4. Sobel M, Pavlov H, Geppert M, Thompson F, DiCarlo E, Davis W. Painful Os Peroneum Syndrome: A Spectrum of Conditions Responsible for Plantar Lateral Foot Pain. Foot Ankle Int. 1994;15(3):112-24. doi:10.1177/107110079401500306 - Pubmed
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