Morphological Asymmetry of the Superior Cervical Facets from C3 through C7 due to Degeneration

Table 2

General degree of facet degeneration (sum of the three subscales).

Grade 0	0-1 points	No degeneration
Grade 1	2-3 points	Mild degeneration
Grade 2	4-5 points	Moderate degeneration
Grade 3	6-7 points	Advanced degeneration
Grade 4	8-9 points	Severe degeneration