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✅ Knee MRI Mastery/Chap 1. Meniscus

(Fig 1-A.06) Medial Meniscus Posterior Root, Anatomy, degeneration, tear

by MSK MRI 2024. 1. 5.

https://youtu.be/GvR9ULGrDOw

https://youtu.be/kEuMzUrHD0M

Category Description
Insertion Points - Inserts along the downward slope of the intercondylar fossa, anterior to the posterior cruciate ligament.
- Extends from the tibial attachment point to just lateral from the articular cartilage inflection point of the medial tibial plateau.
- Commences just lateral to the apex of the medial tibial plateau.
Function - Anterior and posterior meniscal roots help resist hoop stress
>- Prevent outward displacement of the meniscus during axial loading.
Composition - Composed of multiple bundles.
Variations - May have a fissured appearance, a normal variation that should not be mistaken for a meniscal tear.
Lesion Locations - Enthesial Location: At the root attachment of the ligament to the underlying tibia.
- Midsubstance Location: Within the root ligament.
- Junctional Location: At the attachment of the ligament with the posterior horn.

 


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