Parameniscal Cyst:
- Parameniscal cysts are commonly used and well-established secondary or indirect signs of a meniscal tear.
- They, along with meniscal extrusion and subchondral marrow edema, play a crucial role in increasing the diagnostic confidence of radiologists, particularly in cases with technical limitations or equivocal findings.
Deep Lateral Femoral Notch Sign:
- In cases of lateral meniscus (LM) posterior root injuries, the primary secondary MRI finding of significance is the "deep lateral femoral notch sign."
- This sign is characterized by an impaction fracture of subchondral bone measuring greater than or equal to 2 mm in depth.
- Notably, LM posterior root tears are associated with almost 40% of ACL injuries, resulting in this impaction injury. This occurrence is over five times more likely in patients with these root tears compared to those without them.
"Visualizing MSK Radiology: A Practical Guide to Radiology Mastery"
© 2022 MSK MRI Jee Eun Lee All Rights Reserved.
#roottear #MMroot #LMroot #ACLtears #VisualizingMSK
https://visualizingmsk.blogspot.com/
Visualizing MSK Radiology
"Visualizing MSK Radiology: A Practical Guide to Radiology Mastery" © 2022 MSK MRI Jee Eun Lee All Rights Reserved. #VisualizingMSK
visualizingmsk.blogspot.com
'✅ Knee MRI Mastery > Chap 1. Meniscus' 카테고리의 다른 글
| (Fig 1-B.32) Type 2 Complete radial tear with meniscal extrusion (0) | 2024.02.06 |
|---|---|
| (Fig 1-B.31) Type 1 Stable partial root tear (0) | 2024.02.06 |
| (Fig 1-B.28) Indirect signs of root tears -1 (0) | 2024.02.06 |
| (Fig 1-B.27) Giraffe neck sign of root tear (0) | 2024.02.06 |
| (Fig 1-B.26) Direct signs of root tears (0) | 2024.02.06 |