The meniscotibial ligaments originate immediately inferior (6-7 mm) to the edge of the articular cartilage of the medial and posterior part of the medial tibial plateau and insert at the outer surface of the medial meniscus just above the inferior edge. The medial posterior meniscotibial ligament attaches immediately inferior to the meniscocapsular ligament1,11.
Additional attachments are located posteromedially via the following structures 1,12:
The lateral meniscus is attached to the lateral tibial condyle at the following locations 4-6:
posterior horn via the posterior meniscotibial ligament 4
midportion or corpus via the lateral meniscotibial ligament, which courses obliquely immediately beneath the fibular collateral ligament5,6
There are additional attachments of the lateral meniscus to the popliteus muscle posterolaterally via the popliteomeniscal fascicles 4 and to the joint capsule at its superior border 4 as well as to the fibula by the meniscofibular ligament5.
Relations and/or boundaries
The medial posterior meniscotibial ligament is located medially and posteriorly to the medial meniscal root attachment 1 and covered by the joint capsule, which forms its tibial insertion inferiorly to the origin of the meniscotibial ligament 1. The meniscotibial attachment of the deep medial collateral ligament is covered by its superficial portion 2,3.
The lateral posterior meniscotibial ligament is located laterally and posteriorly to the lateral meniscal root attachment and medially to the popliteal hiatus a curved gap with a lack of inferior ligamentous attachments 4.
Radiographic features
MRI
The coronary ligaments are visible in MRI as thin hypointense structures.
1. DePhillipo N, Moatshe G, Chahla J et al. Quantitative and Qualitative Assessment of the Posterior Medial Meniscus Anatomy: Defining Meniscal Ramp Lesions. Am J Sports Med. 2019;47(2):372-8. doi:10.1177/0363546518814258 - Pubmed
2. LaPrade R, Engebretsen A, Ly T, Johansen S, Wentorf F, Engebretsen L. The Anatomy of the Medial Part of the Knee. J Bone Joint Surg Am. 2007;89(9):2000-10. doi:10.2106/JBJS.F.01176 - Pubmed
3. Liu F, Yue B, Gadikota H et al. Morphology of the Medial Collateral Ligament of the Knee. J Orthop Surg Res. 2010;5(1):69. doi:10.1186/1749-799X-5-69 - Pubmed
4. Aman Z, DePhillipo N, Storaci H et al. Quantitative and Qualitative Assessment of Posterolateral Meniscal Anatomy: Defining the Popliteal Hiatus, Popliteomeniscal Fascicles, and the Lateral Meniscotibial Ligament. Am J Sports Med. 2019;47(8):1797-803. doi:10.1177/0363546519849933 - Pubmed
5. Natsis K, Paraskevas G, Anastasopoulos N, Papamitsou T, Sioga A. Meniscofibular Ligament: Morphology and Functional Significance of a Relatively Unknown Anatomical Structure. Anat Res Int. 2012;2012:214784. doi:10.1155/2012/214784 - Pubmed
6. Urban S, Pretterklieber B, Pretterklieber M. The Anterolateral Ligament of the Knee and the Lateral Meniscotibial Ligament - Anatomical Phantom Versus Constant Structure Within the Anterolateral Complex. Ann Anat. 2019;226:64-72. doi:10.1016/j.aanat.2019.06.005 - Pubmed
7. Peltier A, Lording T, Maubisson L, Ballis R, Neyret P, Lustig S. The Role of the Meniscotibial Ligament in Posteromedial Rotational Knee Stability. Knee Surg Sports Traumatol Arthrosc. 2015;23(10):2967-73. doi:10.1007/s00167-015-3751-0 - Pubmed
8. DePhillipo N, Moatshe G, Brady A et al. Effect of Meniscocapsular and Meniscotibial Lesions in ACL-Deficient and ACL-Reconstructed Knees: A Biomechanical Study. Am J Sports Med. 2018;46(10):2422-31. doi:10.1177/0363546518774315 - Pubmed
9. Chahla J, Dean C, Moatshe G et al. Meniscal Ramp Lesions: Anatomy, Incidence, Diagnosis, and Treatment. Orthop J Sports Med. 2016;4(7):2325967116657815. doi:10.1177/2325967116657815 - Pubmed
10. Raheem O, Philpott J, Ryan W, O'Brien M. Anatomical Variations in the Anatomy of the Posterolateral Corner of the Knee. Knee Surg Sports Traumatol Arthrosc. 2007;15(7):895-900. doi:10.1007/s00167-007-0301-4 - Pubmed
11. Cavaignac E, Sylvie R, Teulières M et al. What Is the Relationship Between the Distal Semimembranosus Tendon and the Medial Meniscus? A Gross and Microscopic Analysis From the SANTI Study Group. Am J Sports Med. 2021;49(2):459-66. doi:10.1177/0363546520980076 - Pubmed
12. Lundquist R, Matcuk G, Schein A et al. Posteromedial Corner of the Knee: The Neglected Corner. Radiographics. 2015;35(4):1123-37. doi:10.1148/rg.2015140166 - Pubmed