The mean pain score of patients in both the group at 60 min post-operatively was zero, at 2 h post-operatively mean pain score in Group A and B were 1 and 0 (P = 0.1544). 8 h post-operatively it was 4.2 ± 2.3 (6.2–3.5) and 1.6 ± 1.1 (2.6–0.8) (P = 0.0001).
Ropivacaine (group A)
Ropivacaine plus clonidine (group B)
Onset time of anesthesia