[12] WORMS is a validated research tool for semiquantitative assessment of knee OA. In WORMS, subchondral BMLs are scored from 0 to 3 based on the extent of subregional involvement (0 = none ...

T1-weighted axial and sagittal MRI of each knee with a 1.5-T magnetron scanner revealed signal changes consistent with subchondral microfracture or bone bruise in 8 of the 21 knees. Previous ...

Among these were 25 cases of subchondral insufficiency fracture of the knee (SIFK ... in the "other" category was bone contusion or edema lacking a fracture line, seen in seven cases ...