In which, at the 6th, 10th and 23rd hours, the difference of VAS scores between the two groups is statistically significant In the author's study Shruti Shrikant Patil [134], the author using 0.125% ropivacaine with 0.125% bupivacaine in postoperative pain relief showed that the pain relief by epidural continuous infusion in both groups reached the level good with an average of <3 points.