Table 3 Parameters of anesthesia and surgery in three groups

Ropivacaine/body weight (mg/kg)

0.90 ± 0.18

0.89 ± 0.14

1.41 ± 0.32

0.04

Switching into GA

4 (14.3)

0 (0)*^,#

8 (26.7)

0.01

Surgery time (minutes)

48.9 ± 12.2

49 ± 14.6

58 ± 12.4

0.98

Regional block time (minutes)

7.57 ± 4.73

7.16 ± 3.42

6.7 ± 3.2

0.75

< 0.01

 Satisfied—excellent/good

18 (64.3)—3 (10.7)/15 (53.6)

27 (90)*^,#—17 (56.7)/10 (33.3)

14 (46.7)—6 (20)/8 (26.7)

 Dissatisfied—poor/bad

10 (35.7)—6 (21.4)/4 (14.3)

3 (10)*^,#—3 (10)/0 (0)

16 (53.2)—8 (26.6)/8 (26.6)

< 0.01

 Satisfied—excellent/good

18 (64.3)—3 (10.7)/15 (53.6)

27 (90)*^,#—17 (56.7)/10 (33.3)

16 (53.3)—1 (3.3)/15 (50)

 Dissatisfied—poor/bad

10 (35.7)—6 (21.4)/4 (14.3)

3 (10)*^,#—3 (10)/0 (0)

14 (46.6)—6 (20)/8 (26.6)

Cumulative rescuing sufentanil (μg)

7.3 ± 2.9

5.3 ± 2.6*^,#

6.5 ± 2.2

0.01