Table 1.

Modified endplate score, based on the original endplate defect score [25]

Modified endplate defect score	Original endplate defect score
1	Type I—Normal endplate with no interruption
	Type II—Thinning of the endplate, no obvious break
	Type III—Focal endplate defect with established disc marrow contact but with maintained endplate contour
2	Type IV—Endplate defects < 25% of the endplate area
3	Type V—Endplate defects up to 50% of the endplate area
4	Type VI—Extensive damaged endplates up to total destruction