| Post-operative clinical outcome | Number of patients | Percentage |
| Improved pre-operative cervical pain and No clinical deterioration | 12/12 | 100% |
| Improved pre-operative neurological deficits | 4/7 | 57.14% (33.3% of total study patients) |
| Stationary course of the neurological deficits | 3/7 | 42.86% (25% of total study patients) |