Table 1 Radiographic scoring system for osteoarthritis of the lumbosacral spine intervertebral disc

0

No degeneration, defined by normal disc height, no spur formation, no eburnation, no listhesis, no gas

1

Mild degeneration, defined by 25% disc space narrowing, small spur formation, minimal eburnation, no listhesis, and no gas

2

Moderate degeneration, defined by 25 to 75% disc space narrowing, moderate spur formation, moderate eburnation, listhesis 3 mm, and no gas

3

Advanced degeneration, defined by 75% disc space narrowing, arge spur formation, marked eburnation, listhesis 5 mm, gas present