Table 1 Demographics
Case No. | Oseous deformity | Initial symptom |
|---|---|---|
1 | C2-3 fusion, AOZ, BI, AAI | Dizziness |
2 | C2-3 fusion, AOZ, BI, AAI | Limbs numbness |
3 | AOZ, BI, AAI | Hypaesthesia |
4 | AOZ, BI, AAI | Limbs numbness |
5 | BI, AAI | Gait disturbance |
6 | AOZ, BI, AAI | Headache |
7 | BI | Limb numbness |
8 | BI | Headache |
9 | BI | Neck pain |
10 | AOZ, BI, AAI, C2-3 fusion | Headache and dizziness |
11 | AOZ, BI, AAI, C2-3 fusion | Limb numbness and weakness |
12 | AOZ, BI, AAI | Limb weakness and gait disturbance |
13 | AOZ, BI, AAI, C2-3 fusion | Limb weakness |
14 | AAI, Os odontoideum | Limb weakness, torticollis |