There were no statistically significant differences between both groups with regard to postoperative total pain scores 24 h ( McGill total score : 31.77 27.95 vs. 36.80 31.39 , p = 0.3535 ) and 48 h ( McGill total score : 19.18 20.09 vs. 26.61 27.70 , p = 0.0942 ) after surgery .