Group comparisons between patients receiving CT-guided spinal injections in 2009 and 2010a
| Patient Group | 2009 | 2010 | T Test P Value |
|---|---|---|---|
| Age (yr) | 55.6 ± 14.0 | 59.9 ± 14.0 | .128 |
| Male | 42% (21) | 58% (29) | NA |
| Injection sites | 2.0 ± 1.0 (100) | 2.1 ± 1.3 (103) | .667 |
| Medial branch blocks | 0.1 ± 0.3 (4) | 0.1 ± 0.4 (4) | 1.000 |
| Facet joint blocks | 0.4 ± 0.8 (22) | 0.6 ± 1.3 (28) | .357 |
| Selective root blocks | 1.3 ± 0.9 (63) | 1.0 ± 1.0 (49) | .118 |
| Epidural blocks | 0.2 ± 0.4 (11) | 0.4 ± 0.6 (22) | .053 |
| Injection levels | 1.5 ± 0.7 (77) | 1.6 ± 1.1 (81) | .589 |
| Cervical levels | 0.7 ± 0.8 (35) | 0.2 ± 0.6 (12) | .001 |
| Thoracic levels | 0.1 ± 0.5 (5) | 0.1 ± 0.3 (4) | 1.000 |
| Lumbar levels | 0.6 ± 0.8 (30) | 1.1 ± 1.2 (53) | .016 |
| Sacral levels | 0.1 ± 0.4 (7) | 0.2 ± 0.6 (12) | .329 |
| Hardware present | 24% (12) | 14% (7) | NA |
| Reported painb | 6.2 ± 1.8 (28) | 6.3 ± 2.3 (36) | .809 |
| Immediate pain decrease | 3.9 ± 2.4 | 4.4 ± 2.6 | .320 |
| Procedure time (min) | 45.4 ± 19.1 | 43.1 ± 17.8 | .535 |