Table 1 Constituent rations of the clinical data of the 118 patients.
Clinical data | Cases | Constituent ratio (%) |
|---|---|---|
Sex | 118 | 100.0 |
Male | 75 | 63.6 |
Female | 43 | 36.4 |
Age | 118 | 100.0 |
< 18 | 0 | 0.0 |
18 ~ 60 | 54 | 45.8 |
> 60 | 64 | 54.2 |
BMI | 118 | 100.0 |
< 18.5 | 22 | 18.6 |
18.5 ~ 23.9 | 75 | 63.6 |
> 23.9 | 21 | 17.8 |
ASA classification | 118 | 100.0 |
I | 2 | 1.7 |
II | 50 | 42.4 |
III | 61 | 51.7 |
IV | 5 | 4.2 |
Primary diagnosis | 118 | 100.0 |
Basilar invagination | 7 | 5.9 |
Atlantoaxial dislocation | 17 | 14.4 |
C1 fracture | 27 | 22.9 |
C2 fracture | 13 | 11.0 |
C1 & C2 fracture | 5 | 4.2 |
C1 & Odontoid fracture | 6 | 5.1 |
Odontoid fracture | 43 | 36.4 |
Vertebral artery hypoplasia | 118 | 100.0 |
Left-dominant | 12 | 10.2 |
Right-dominant | 1 | 0.8 |
None | 105 | 89.0 |
