Table 1.
Baseline and demographic characteristics of the patients included in the retrospective study
| Patients (n) | 27 |
| Gender | |
| Female (n, %) | 11 (40.7%) |
| Male (n, %) | 16 (59.3%) |
| Age (years, mean ± SD) | 54.4 ± 10.1 |
| Height (cm, mean ± SD) | 171.0 ± 7.0 |
| Weight (kg, mean ± SD) | 73.9 ± 12.0 |
| Body mass index (kg/m2, mean ± SD) | 25.2 ± 3.1 |
| Pain evolution period (months, median [IQR]) | 4 [3–6] |
| Follow-up period (months, median [IQR]) | 24 [22–28] |
| Sector of the column | |
| Lumbar (patients, n, %) | 25 (92.6%) |
| Cervical (patients, n, %) | 2 (7.4%) |
| Intervertebral discs (n) | 52 |
| MRI Pfirrmann grade | |
| II (discs, n, %) | 7 (13.5%) |
| III (discs, n, %) | 22 (42.3%) |
| IV (discs, n, %) | 9 (17.3%) |
| V (discs, n, %) | 14 (26.9%) |
| Series of infiltration | |
| Two series (n, %) | 18 (66.7%) |
| Three series (n, %) | 9 (33.3%) |
| Multiple levels injected | |
| One level (n, %) | 7 (25.9%) |
| Two levels (n, %) | 15 (55.6%) |
| Three levels (n, %) | 5 (18.5%) |
| Levels infiltrated | |
| C5–C6 (n, %) | 2 (3.8%) |
| C6–C7 (n, %) | 1 (1.9%) |
| L2–L3 (n, %) | 2 (3.8%) |
| L3–L4 (n, %) | 6 (11.5%) |
| L4–L5 (n, %) | 20 (38.5%) |
| L5–S1 (n, %) | 21 (40.4%) |
IQR interquartile range, MRI magnetic resonance imaging