Os Fabella
Description
Name
- Os Fabella
- Fabellae
History
- Fabella is latin for "little bean" or faba "bean"[2]
General
- Accessory ossicle almost always found in the lateral head of gastrocnemius
- Rarely it is found in the medial head[3]
- Can be osseous or fibrocartilaginous in nature
- Articulates with the respective medial/lateral femoral condyle
- Rarely, it is bipartite or tripartite
- Can be mistaken for a loose body or osteophyte
Epidemiology
- Found in approximately 20% - 39% of the population[4][5]
- More common in men than women, older than younger (need citation)
- High regional variation, more common in Asia/ Oceania, less common in North American and Africa (need citation)
- Bilateral is more common than lateral
- Ligamentous structure found within the posterolateral corner of the knee
- Functions as a static secondary stabilizer with morphological variance
Clinical Significance
See Also
References
- ↑ Weng, Shuo-Po, et al. "Treatment of Fabella syndrome with arthroscopic fabellectomy: a case series and literature review." BMC Musculoskeletal Disorders 22 (2021): 1-7.
- ↑ William Alexander Newman Dorland. Dorland's Illustrated Medical Dictionary. (2007) ISBN: 9781416023647
- ↑ CHARLES J. SUTRO, MAURICE M. POMERANZ, SYDNEY M. SIMON. FABELLA (SESAMOID IN THE LATERAL HEAD OF THE GASTROCNEMIUS). (1935) Archives of Surgery. 30 (5): 777. doi:10.1001/archsurg.1935.01180110048003
- ↑ Kawashima T, Takeishi H, Yoshitomi S et-al. Anatomical study of the fabella, fabellar complex and its clinical implications. Surg Radiol Anat. 2007;29 (8): 611-6
- ↑ Berthaume, Michael A., Erica Di Federico, and Anthony MJ Bull. "Fabella prevalence rate increases over 150 years, and rates of other sesamoid bones remain constant: a systematic review." Journal of Anatomy 235.1 (2019): 67-79.