Reduced Opioid Consumption with Pericapsular Nerve Group Block for Hip Surgery: A Randomized, Double-Blind, Placebo-Controlled Trial

Figure 4

Mean ± standard deviation (SD) plot of pain scores during the first postoperative 24 hrs. NRS, numerical rating scale; PENG, pericapsular nerve group; control, control group; preop, preoperatively; postop, postoperatively. A statistically significant difference. values were derived from Mann–Whitney’s U test and adjusted by the Bonferroni correction method. Shapiro–Wilk’s test was employed to test the normality assumption.