Solution A (levobupivacaine 6 mg)

Solution B (levobupivacaine 10 mg)

Interval (minutes)

Average (minutes)

Interval (minutes)

Average (minutes)

Surgical time

20 - 63

43.5

22 - 78

45.3

Minimal start of the sensitive blockage

1 - 5

2.9

1 - 5

2.9

Maximal star of the sensitive blockage

4 - 15

7.3

2 - 10

6.8