knee mri deep mcl meniscotibial ligament tear dmcl radiology
  • The dMCL lies deep to the sMCL.
     
  • It has 2 components.
    1. Menisco Femoral &,
    2. Menisco Tibial.

 

  • Both attach to the body of the medial meniscus

 

  • The Meniscotibial ligament extends from medial meniscus to the medial tibial condyle.

  • Look for 2 things,
    1. Increased signal of the ligament.
      • Normally the menisco-tibial ligament is low signal.
    2. Ill definition & thickening of the ligament.

 

  • The menisco-tibial component is stronger than the menisco-femoral and is less commonly torn.

In this case the menisco-tibial ligament is hyper-intense, thickened and ill defined (Pink arrows). All features of a torn menisco-tibial ligament.

 

You can also see that similar changes are present in the proximal sMCL which is also torn (Blue arrow).

  • Assess on coronal scans the menisco-tibial and menisco-femoral ligaments.
     
  • Start by assessing the sMCL.
     
  • Once you have looked at the sMCL look immediately deep to it to find the deep MCL components.

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