MRI characteristics | score |
---|---|
No EP break or defects; Uniform hypointense band; Symmetrically concave; No MC | 1 |
Focal thinning of the EP; No EP breaks; No MC | 2 |
Focal disc marrow contacts; Normal contour of EP maintained; No MC | 3 |
Defect up to 25% of width of EP; Typical depression present; MC usually present | 4 |
Defect up to 50% of width of EP; Typical depression present; MC usually present | 5 |
Complete EP damage; Irregularity and sclerosis of EP; MC usually present | 6 |