Correlation Between Bone Marrow Edema and Collapse of the Femoral Head in Steroid-Induced Osteonecrosis

Abstract

Bone marrow edema was not present on initial MR imaging of osteonecrosis. Bone marrow edema should be considered a marker for potential progression to advanced osteonecrosis, and careful examinations for osteonecrosis are necessary when bone marrow edema is seen.