Distribution of the injectate in the proximity of the injection (TAP and QL muscle)
| Group | TAP | Posterior QL | Anterior QL |
| QL1 | 18 (90%) | 3 (15%) | 7 (35%) |
| QL2 | 15 (75%) | 20 (100%) | 9 (45%) |
| TOP QL3 | 0 (0%) | 1 (5%) | 20 (100%) |
Categorical data are expressed as n (%). Each QL group consisted of 20 blocks.
QL, quadratus lumborum; TAP, transversus abdominis plane; TOP, transverse oblique paramedian.