Results:
postoperative shoulder pain
Of 144 consenting patients, 72 patients each were allocated to the AB and control groups, respectively, and 14 patients were excluded. Finally, 130 patients were analyzed, with 68 in the AB group and 62 in the control group. There was no difference in the incidence of postoperative shoulder pain between the 2 groups (55.9% vs 56.5%, 