Non-dural tear complications between the 2 groups.
| Variable | LESI (N = 129) | Non-LESI (N = 186) | P Value |
| Complication | |||
| Infection | 1 | 2 | 0.75 |
| New-onset neurological symptom | 2 | 2 | 0.89 |
| Urinary tract infection | 2 | 3 | 0.68 |
| Pneumonia | 1 | 1 | 0.64 |
| Myocardial infarction | 0 | 0 | NA |
| Cerebrovascular accident | 0 | 0 | NA |
| Deep venous thrombosis | 1 | 2 | 0.75 |
| Psychological symptoms | 1 | 1 | 0.64 |
| Other | 2 | 1 | 0.75 |
| Total | 10 | 12 | 0.83 |
| Revision surgery | 2 | 2 | 0.89 |
| Readmission within 1 mo | 2 | 3 | 0.68 |
a A P value of <0.05 is considered to be significant.
LESI, lumbar epidural steroid injection; NA, not applicable.