The side effects of ropivacaine 0.1% did not differ significantly from those of bupivacaine 0.1% (4% versus 8, 7% for backache; 8% vs 4.3% for nausea; 12% vs 8.7% for pruris; 8% vs 13% for shivering, 8% vs 21.7% for motor bloc with Bromage I.