Compared with group 1 , group 2 patients showed less tourniquet pain , prolonged time to first request for postoperative rescue analgesia ( 5.5 1.3 vs 20.4 3.7 hours , P < 0.001 ) , lower postoperative diclofenac consumption ( 120.00 45.23 vs 55.1 0.00 mg , P < 0.001 ) , lower scores for postoperative pain as measured by the Verbal Rating Scale , higher patient satisfaction index , and a nonsignificant difference in the incidence of postoperative adverse effects between groups .