Os Peroneum
Description
General
- Accessory ossicle of the foot
Gross Anatomy
- Located at the lateral aspect of the cuboid
- Near the cubital tunnel and calcaneocuboid joint
- Embedded within the peroneus longus tendon
- For this reason, it is technically a sesamoid
- One of the accessory bones of the foot and ankle
Epidemiology
- Present in everyone in at least cartilaginous form[4]
- Ossicle fully ossified in up to 26% of the population
Imaging
- Best seen on oblique radiograph of the foot
- Can appear round or oval
- Bipartite approximately 30% of the time[5]
- Bilateral approximately 60% of the time
Clinical Significance
- Can become painful, fractured or displaced
- Displacement is indirect sign of peroneus longus tendon tear
Clinical Significance
See Also
References
- ↑ Case courtesy of Frank Gaillard, Radiopaedia.org, rID: 7644
- ↑ Bianchi, Stefano, Chandra Bortolotto, and Ferdinando Draghi. "Os peroneum imaging: normal appearance and pathological findings." Insights into imaging 8 (2017): 59-68.
- ↑ Osiowski, Aleksander, et al. "The prevalence and clinical considerations of Os Vesalianum Pedis: A meta-analysis." Foot and Ankle Surgery (2025).
- ↑ Miller, Theodore T. "Painful accessory bones of the foot." Seminars in musculoskeletal radiology. Vol. 6. No. 02. Copyright© 2002 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA. Tel.:+ 1 (212) 584-4662, 2002.
- ↑ Sobel, Mark, et al. "Painful os peroneum syndrome: a spectrum of conditions responsible for plantar lateral foot pain." Foot & Ankle International 15.3 (1994): 112-124.