<p>Postoperative analgesic effects of various quadratus lumborum block approaches following cesarean section: a randomized controlled trial</p>

Abstract

The analgesic effect of QLB is highly dependent on the injection position of local anesthetic. Besides, the ultrasound-guided QLB type 2+3 can provide superior analgesic effect following cesarean section to that of QLB type 2 or 3 block. However, it remains to be further validated about whether the combination of QLB type 2 and 3 is the best approach.