ACL Tibial Eminence Avulsion

17 year old.  It’s definitely more common to have a frank ACL rupture rather than on avulsion of the tibial eminence in this age group but not all patients “read the textbooks”. Good example of lipohemarthrosis which you can seen on both the coronal T1-weighted images and on the axial T2 fat saturated images.


This is devilishly  hard to see on the XR and given away mainly by the large lipohemarthrosis..