Compared with group @ , group @ patients showed less tourniquet pain , prolonged time to first request for postoperative rescue analgesia ( @ @ vs @ @ hours , P < @ ) , lower postoperative diclofenac consumption ( @ @ vs @ @ mg , P < @ ) , 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 .