Table 4 adverse effects in both groups
Adverse effects | CT-guided group n = 40 | Standard group n = 38 | p value |
|---|---|---|---|
Minor complications | |||
 Back pain | 4 (10.0) | 5 (13.2) | 0.734 |
 Soreness | 7 (17.5) | 8 (21.1) | 0.691 |
 Hematoma | 1 (2.5) | 2 (5.3) | 0.610 |
Major complications | |||
 Neuritis | 3 (7.5) | 8 (21.1) | 0.086 |
 Sensory deficits | 3 (7.5) | 5 (13.2) | 0.476 |
 Anesthesia dolorosa | 1 (2.5) | 1 (2.6) | 1.000 |
*Per-patient adverse effects | 6 (15) | 14 (36.8) | 0.027 |