On AP/LAT x-ray film, the involved knees were negative for fracture. Magnetic resonance imaging revealed significant posttraumatic subcortical signal abnormality in 8 of 21 knees studied.

3T MRI was performed with the same sequence protocol as in the Osteoarthritis Initiative (OAI). In a primary reading subchondral bone marrow edema-like lesions were assessed according to the WORMS ...

Interim results from a randomized trial show that middle-aged patients with knee pain and suspected meniscal tears can benefit from MRI scans even ... were 25 cases of subchondral insufficiency ...