✔️Empty notch sign
- The "Empty Notch Sign" is an indicator of an ACL tear or avulsion at its femoral attachment.
- This sign is identified by a fluid signal at the usual ACL attachment site within the intercondylar notch on axial and coronal fluid-sensitive MRI scans.
- It emphasizes the importance of thoroughly inspecting the ACL attachments, noting that the proximal ACL is the second most common injury location following the midsubstance.
"Visualizing MSK Radiology: A Practical Guide to Radiology Mastery"
© 2022 MSK MRI Jee Eun Lee All Rights Reserved. #VisualizingMSK #ACL #acltear #kneeMRI #emptynotchsign
You may not distribute or commercially exploit the content. Nor may you transmit it or store it on any other website or other forms of the electronic retrieval system.
