Anterior lumbar interbody fusion subgroup analysis postoperative day opioid consumption and hospital length of stay.
| Opioid Measure | Transversus Abdominis Plane (n = 17) | Control (n = 20) | P Value |
| MME consumption | |||
| POD 0 | 14.7 (6.7–44.3) | 33.7 (21.3–47.1) | 0.060 |
| POD 1 | 46.0 (30.0–62.0) | 67.6 (47.6–85.2) | 0.024a |
| POD 2 | 30.0 (17.5–75.0) | 53.6 (35.3–89.2) | 0.187 |
| POD 3 | 33.0 (4.0–60.0) | 45.0 (5.6–79.6) | 0.442 |
| POD 4 | 15.0 (0.0–53.0) | 0.0 (0.0–56.2) | 0.478 |
| POD 5 | 0.0 (0.0–27.2) | 0.0 (0.0–27.2) | 0.964 |
| Total MME days 0–2 | 99.2 (62.2–182.2) | 152.5 (112.0–211.5) | 0.026a |
| Total MME days 0–5 | 176.4 (100.3–273.7) | 234.3 (139.3–406.4) | 0.125 |
| Length of stay, d | 4.0 (2.5–7.5) | 3.0 (3.0–5.0) | 0.257 |
Abbreviations: MME, morphine milligram equivalents; POD, postoperative day.
Note: Data presented as median (interquartile range).
↵a Statistically significant difference (P < 0.05).