The onset time of bupivacaine group was 10.8 ± 1.9 minutes, which was shorter than that of the ropivacaine group which was 13.0 ± 1.6.
Thời gian onset của nhóm bupivacain là 10,8 ± 1,9 phút, là ngắn hơn so với nhóm ropivacain là 13,0 ± 1,6.