Progressive retraction of a fractured os peroneum suggesting repetitive injury to the peroneus longus tendon

Jennifer L Favinger; Michael L Richardson; Felix S Chew

doi:10.1016/j.radcr.2017.11.006

Progressive retraction of a fractured os peroneum suggesting repetitive injury to the peroneus longus tendon

Radiol Case Rep. 2017 Dec 9;13(1):216-219. doi: 10.1016/j.radcr.2017.11.006. eCollection 2018 Feb.

Authors

Jennifer L Favinger¹, Michael L Richardson¹, Felix S Chew¹

Affiliation

¹ Department of Radiology, University of Washington, 4245 Roosevelt Way NE, Box 354755, Seattle, WA 98105, USA.

Abstract

The os peroneum is an accessory ossicle within the peroneus longus tendon. Prior reports have discussed fracture of the os peroneum with associated tears of the peroneus longus tendon. When the ossicle fractures, there can be varying degrees of retraction of the tendon, which can be diagnosed by malposition of the ossicle or the ossicle fragments. We report a case of a man with recurrent eversion ankle injuries with progressive retraction of a fractured os peroneum, implying injuries to the superior and inferior peroneal retinacula and the peroneus longus tendon.

Keywords: Os peroneum; Ossicle fracture; Painful os peroneum syndrome; Peroneus longus.

Publication types

Case Reports