Table 2.
Comparison of intraoperative data and complications between the two groups
| PE-PLIF (n = 30) | Open PLIF (n = 30) | P | |
|---|---|---|---|
| Operative times (min) | 179.8 ± 31.9 | 125.8 ± 25.8 | < 0.001 |
| Estimated blood loss (ml) | 63.3 ± 22.5 | 313.3 ± 183.1 | < 0.001 |
| Volume of drainage (ml) | NA | 614 ± 428.2 | NA |
| Postoperative hospitalization (days) | 3.3 ± 1.0 | 7.0 ± 1.0 | < 0.001 |
| Complications (% n) | 3.3 | 6.7 | 0.301* |
| Infection | 0 | 1 | |
| Dural tear | 0 | 1 | |
| Contralateral radiculopathy | 1 | 0 | |
| Reoperation | 1 | 1 |
*results from fisher’s exact test or χ2 test. BMI Body mass index. PE-PLIF Percutaneous endoscopic posterior lumbar interbody fusion. Open PLIF Open posterior lumbar interbody fusion