Pain severity and Neck Disability Index scores for intra-articular facet and transforaminal corticosteroid injections
| Variable | Groups | |
|---|---|---|
| IFSI | TFSI | |
| Subjects (No.) | ||
| It | 28 | 28 |
| At | 29 | 27 |
| VAS% (mean) (95% CI) | ||
| It | 45.3 (21.4–69.2) | 9.8 (+11.5–31.2) |
| At | 37.0 (9.2–64.7) | 17.8 (+6.6–42.2) |
| NDI% (mean) (95% CI) | ||
| It | 24.3 (+2.9–51.5) | 9.6 (+15.2–34.4) |
| At | 20.7 (+6.2–47.6) | 12.8 (+11.2–36.7) |
Note:—VAS% indicates the relative difference between postintervention and baseline VAS pain scores; NDI%, the relative difference between postintervention and baseline Neck Disability Index scores; It, intention-to-treat analysis; At, as-treated analysis.