Sesamoid bones of knee

Ossa sesamoidea genus

Definition

Noteworthy sesamoid bones of knee include the patella, fabella and cyamella.

  • The patella holds the crown as the body’s largest sesamoid bone. It resides within the quadriceps tendon and is positioned in front of the lower end of the femur. For more details, please refer to this link:

  • The fabella is a sesamoid bone or cartilage that can occasionally be found within the lateral head of the gastrocnemius muscle

  • The cyamella serves as an accessory, anomalous sesamoid bone of the popliteus muscle.

References

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Text written by Muhammad A. Javaid, MD, PhD

  • Standring, S. and Gray, H. (2016). ‘Chapter 80: Pelvic girdle, gluteal region and thigh’ in Gray’s anatomy The anatomical Basis of Clinical Practice. (41st ed.) New York: Elsevier, pp. 1327-1329.

  • Dalip, D., Iwanaga, J., Oskouian, R.J. and Tubbs, R.S. (2018). A Comprehensive Review of the Fabella Bone. Cureus. 10(6):e2736. doi: 10.7759/cureus.2736. PMID: 30087812; PMCID: PMC6075638.

  • Khanna, V. and Maldjian, C.(2015). The cyamella, a lost sesamoid: Normal variant or posterolateral corner anomaly? Radiol Case Rep. 9(1):e00031. doi: 10.2484/rcr.v9i1.907. PMID: 27141242; PMCID: PMC4838748.