Osteomeniscal impact edema (OMIE) refers to a bone marrow edema pattern in the knee adjacent to a displaced meniscal flap tear.
On this page:
Clinical presentation
Patients can present with focal medial knee pain.
Pathology
This occurs secondary to a displaced meniscal flap tear with peripheral, focal edema in the adjacent bone. It has been described for the medial meniscus 1,2.
Radiographic features
MRI
A typical finding on MRI is a meniscal flap tear with a displaced meniscal fragment in the meniscotibial or meniscofemoral recess and associated focal and peripherally located edema in the adjacent medial tibial plateau or femoral condyle 1,2.
Differential diagnosis
- subchondral insufficiency fracture: bone marrow edema in subchondral insufficiency fractures is central and diffuse rather than peripheral and focal as well as having subchondral low T1 signal 2
Unable to process the form. Check for errors and try again.