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Tibial Collateral Ligament
Connective Tissue

Tibial Collateral Ligament

Ligamentum collaterale tibiale

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The tibial collateral ligament is one of four major ligaments of the knee joint. It is a broad band on the inner knee and attaches superiorly to the medial epicondyle of the femur. Inferiorly, it attaches first to the anterior band of semimembranosus muscle and then continues inferiorly to attach to the medial surface of the tibia, deep to the pes anserine.

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Anatomical Relations

Unlike the fibular collateral ligament, the tibial collateral ligament is fused to the medial meniscus and the articular capsule of the knee joint. Hence, it is less flexible than the fibular collateral ligament and more susceptible to injury.


The main function of the tibial collateral ligament is to keep the knee stable as it moves through its full range of motion.

List of Clinical Correlates

—Unhappy triad

—Tibial collateral ligament tear

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Knee Medial Collateral Ligament

ScienceDirect image

19 In a rabbit knee medial collateral ligament rupture model, the application of PDGF-BB delivered in fibrin sealant significantly improved the ultimate load, energy absorbed to failure, and ultimate elongation values of the femur–MCL–tibia complex when compared with the control group.

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