Clinical Outcome Parameter |
Levobupivacaine
(Group 1B) |
Ropivacaine
(Group 2B) |
P value |
Onset of surgical anesthesia (min) |
18.1 (1.1) |
16.1 (0.8) |
0.15 |
Intraoperative fentanyl requirement (mcg) |
109.7 (14.9) |
91.0 (13.1) |
0.35 |
Morphine requirement in PACU (mg) |
4.0 (0.7) |
4.6 (1.2) |
0.68 |
Initial VAS pain score in PACU |
4.6 (0.5) |
4.7 (0.4) |
0.94 |
Time from block placement to first request for oral pain medication (hrs) |
15.5 (2.0) |
14.7 (2.0) |
0.76 |
Number of (oxycodone 5 mg/acetaminophen 325 mg) tablets used in first 48 hrs |
5.4 (0.5) |
4.8 (0.4) |
0.36 |
Amount of time to absence of motor block (hrs) |
26.5 (1.5) |
23.5 (1.5) |
0.16 |
Amount of time to absence of sensory block (hrs) |
27.5 (1.5) |
25.7 (1.5) |
0.38 |
Patient satisfaction with postoperative analgesia
(1 = very dissatisfied, 10 = very satisfied) |
8.6 (0.2) |
8.8 (0.1) |
0.46 |
*Data =Mean (SEM). PACU, post-anesthesia care unit; VAS, visual analog scale