Table 2 Outcomes of patients who underwent transforaminal lumbar interbody fusion with and without erector spinae plane block. ESPB, erector spinae plane block; CV, coefficient of variation; POR, postoperative room; POD, postoperative day; IV, intravenous.
Variable | Non-ESPB (30) | ESPB (30) | p | Sensitivity analysis (p) |
|---|---|---|---|---|
Mean arterial pressure difference (IQR) | 47.1 (13.1) | 42.0 (24.2) | 0.02 | 0.01 |
Coefficient of variation (IQR) | 14.7 (4.2) | 13.0 (5.1) | 0.01 | 0.01 |
Pain: post-operative recovery room (SD) | 6.7 (1.9) | 4.7 (2.7) | < 0.01 | < 0.01 |
Pain: post-operative day one (SD) | 2.8 (0.8) | 2.3 (0.6) | < 0.01 | < 0.01 |
Pain: discharge date (SD) | 2 (0.6) | 2 (0.5) | 1 | 0.90 |
Morphine: post-operative recovery room (SD) | 4.8 (3.2) | 3.5 (4.1) | 0.16 | 0.24 |
Morphine: ward (SD) | 1.2 (4.1) | 0 (0) | 0.13 | 0.19 |
Intravenous supplement (SD) | 3 (0.9) | 1.7 (0.8) | < 0.01 | < 0.01 |
Foley catheter usage (SD) | 2.2 (1.1) | 1.8 (0.8) | 0.12 | 0.04 |
Length of hospital stay (SD) | 4.1 (0.8) | 5.2 (1.2) | < 0.01 | < 0.01 |
Complication (%) | 1 (3.3%) | 0 (0%) | 1 | Perfect separation |
Blood loss (SD) | 426.7 (256.2) | 268.3 (174.9) | < 0.01 | 0.02 |
Operative time (IQR) | 178.0 (39.8) | 164.5 (54.0) | 0.10 | 0.26 |
Blood loss per level (SD) | 157.6 (101.3) | 105.1 (63.0) | 0.02 | 0.03 |
Operative time per level (IQR) | 68.3 (20.7) | 66.8 (21.3) | 0.82 | 0.97 |
