Arcuate ligament
Citation, DOI, disclosures and article data
Citation:
Gaillard F, Knipe H, Shetty A, et al. Arcuate ligament. Reference article, Radiopaedia.org (Accessed on 07 Dec 2024) https://doi.org/10.53347/rID-7989
rID:
7989
Article created:
Disclosures:
At the time the article was created Frank Gaillard had no recorded disclosures.
View Frank Gaillard's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Henry Knipe had no recorded disclosures.
View Henry Knipe's current disclosures
Revisions:
5 times, by
4 contributors -
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The arcuate ligament is part of the posterolateral ligamentous complex of the knee that is variably present, being found in ~65% (range 47.9-71%) of knees. It is a Y-shaped thickening of the posterolateral capsule, which arises from the fibular styloid and divides into two limbs:
- medial limb: curves over the popliteus muscle to join with the oblique popliteal ligament
- lateral limb: ascends to blend with the capsule near the lateral gastrocnemius muscle
In individuals with a large fabella, the arcuate ligament may be absent replaced by a thick fabellofibular ligament.
See also
References
- 1. Juhng SK, Lee JK, Choi SS et-al. MR evaluation of the "arcuate" sign of posterolateral knee instability. AJR Am J Roentgenol. 2002;178 (3): 583-8. doi:10.2214/ajr.178.3.1780583 - Pubmed citation
- 2. Vinson EN, Major NM, Helms CA. The posterolateral corner of the knee. AJR. American journal of roentgenology. 190 (2): 449-58. doi:10.2214/AJR.07.2051 - Pubmed
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