Fabellofibular Ligament
Description
Name
- Gastrocnemiofibular Ligament
- Fabellofibular Ligament
General
- Ligamentous structure found within the posterolateral corner of the knee
- Functions as a static secondary stabilizer with morphological variance
Gross Anatomy
- Originates on the lateral fabella, descends vertically parallel to lateral collateral ligament
- It converges with the anterior fibers of the lateral head of the gastrocnemius
- It inserts on the fibular styloid process, posterior to the arcuate ligament, biceps femoris tendon and lateral to the popliteofibular ligament
Anatomic Variance
- It can originate from the posterolateral corner of the femoral condyle of no fabella is present[3]
- Considerable variability found in cadaveric and imaging studies[4]
- Presence/thickness inversely related to the presence/thickness of the arcuate ligament
Function
- Reinforces joint capsule of the knee
- Contributes to posterolateral corner
- Restraint to external rotation, varus angulation, posterior translation[5]
Clinical Significance
See Also
References
- ↑ Image courtesy of https://info.mrionline.com/
- ↑ Case courtesy of Frank Gaillard, Radiopaedia.org, rID: 9330
- ↑ Terry, Glenn C., and Robert F. LaPrade. "The posterolateral aspect of the knee: anatomy and surgical approach." The American Journal of Sports Medicine 24.6 (1996): 732-739.
- ↑ Tomczyk J, Rachalewski M, Bianek-Bodzak A, Domżalski M. Anatomical Variations of Knee Ligaments in Magnetic Resonance Imaging: Pictorial Essay. Folia Morphol. 2019;78(3):467-75. doi:10.5603/fm.a2019.0004
- ↑ cTerry, Glenn C., and Robert F. LaPrade. "The posterolateral aspect of the knee: anatomy and surgical approach." The American Journal of Sports Medicine 24.6 (1996): 732-739.