Official Journal of the Italian Society of Orthopaedics and Traumatology
Table 1 Cervical degenerative index (CDI) factor scoring
Factors | CDI score | |||
|---|---|---|---|---|
0 | 1 | 2 | 3 | |
Disc space narrowing | None | 25% | 50% | 75% |
Endplate or facet sclerosis | None | Minimal | Moderate | Severe |
Osteophytes | None | <2 mm | 2–4 mm | >4 mm |
Olisthesis | None | <3 mm | 3–5 mm | >5 mm |