Clinical presentation of patients.
| Variables | Posterolateral Approach (n = 31) | Posterior Parasagital Approach (n = 40) | P Value |
| Level of medial branch treated | 0.360 | ||
| C3-5 | 0 (0.0) | 2 (5.0) | |
| C4-6 | 18 (58.1) | 19 (47.5) | |
| C5-7 | 13 (41.9) | 19 (47.5) | |
| Duration of procedure, min | 54.68 ± 7.39 | 44.13 ± 4.72 | 0.000a |
| Complicationsb | |||
| Neuritis | 4 (12.9) | 3 (7.5) | 0.449 |
| Numbness | 14 (45.2) | 12 (30.0) | 0.188 |
| Pruritus | 11 (35.5) | 16 (40.0) | 0.697 |
| Dysesthesia | 14 (45.2) | 21 (52.5) | 0.540 |
Note: Qualitative data were expressed as number (%), and qualitative variables were expressed as the mean ± SD.
aSignificant different between 2 groups where P < 0.05.
bSome patients presented with more than one complication.