Possible MR imaging outcome predictors for interlaminar ESI in terms of the NASS patient-satisfaction scalea
| NASS 1 or 2 (n = 37) | NASS 3 or 4 (n = 19) | P Value | |
|---|---|---|---|
| Central HIZ or HIVD | |||
| Present | 28 (66.7%) | 14 (33.3%) | 1.000 |
| Absent | 9 (64.3%) | 5 (35.7%) | |
| Schmorl nodes | |||
| Present | 5 (71.4%) | 2 (28.6%) | 1.000 |
| Absent | 32 (65.3%) | 17 (34.7%) | |
| Modic type 1 | |||
| Present | 1 (50%) | 1 (50%) | 1.000 |
| Absent | 36 (66.7%) | 18 (33.3%) | |
| Facet arthropathy | |||
| Present | 9 (24.3%) | 7 (36.8%) | .362 |
| Absent | 28 (75.7%) | 12 (63.2%) |
a Data are number of patients. Both the NASS patient-satisfaction index and MR imaging were available in 56 patients.