Morphological Asymmetry of the Superior Cervical Facets from C3 through C7 due to Degeneration
Table 3
The mean values and SDs for the calculations of the superior facets from C3 to C7 on a total of 85 vertebrae and the mean differences between the smaller and larger superior facet from C3 to C7 on a total of 85 vertebrae.
Morphological characteristics and differences Mean (SD)
Total facet surface Left
Total facet surface Right
Recognizable joint surface Left
Recognizable joint surface Right
Total facet surface Smaller vs Larger
Recognizable joint surface Smaller vs Larger
Dimensions and surface area (mm)
Anteroposterior distance
12,34 (2,66)
12,38 (3,18)
9,1 (1,52)
9,24 (1,68)
2,47 (2,26
1,11 (0,86
Mediolateral distance
12,55 (1,69)
12,26 (1,99)
10,28 (1,42)
10,18 (1,44)
1,61 (1,43
0,98 (0,75
Anteromedial-posterolateral distance
11,81 (1,84)
11,62 (2,50)
9,51 (1,38)
9,33 (1,67)
1,9 (1,61
0,99 (0,91
Anterolateral-posteromedial distance
12,84 (2,23)
13,12 (2,96)
12,01 (1,61)
10,51 (1,83)
2,18 (2,18
2,17 (1,64
Surface area (mm2)
78,21 (12,02)
77,42 (14,99)
60,87 (7,46)
60,98 (8,68)
11,51 (10,9
5,05 (4,03
Curvature (mm/ratio)
Facet depth in anteroposterior direction
0,99 (0,55)
0,67 (0,48)
0,7 (0,39)
0,63 (0,31)
0,6 (0,5
0,32 (0,3
Facet depth in anteroposterior direction/Anteroposterior distance
0,08 (0,04)
0,05 (0,03)
0,08 (0,05)
0,07 (0,03)
0,05 (0,04
0,04 (0,03
Facet depth in mediolateral direction
0,86 (0,47)
0,95 (0,60)
0,74 (0,41)
0,75 (0,37)
0,47 (0,44
0,3 (0,25
Facet depth in mediolateral direction/Mediolateral distance
