Table 2 Clinical symptoms
| Symptoms | Preoperative no. (%) | Postoperative improvement no. (%) |
|---|---|---|
| Occipital or neck pain | 7 (77.8%) | 6 (85.7%) |
| Extremity numbness | 8 (88.9%) | 6 (75.0%) |
| Extremity weakness | 7 (77.8%) | 7 (100%) |
| Unsteady gait | 3 (33.3%) | 3 (100%) |
| Hemiparalysis | 2 (22.2%) | 2 (100%) |