Effective postoperative analgesia after cesarean section (CS) is important because it enables
early ambulation and facilitates breast-feeding. A 2009 Cochrane review concluded that wound
infiltration with local analgesic after CS reduced opioid consumption. In addition, two
regional anesthetic techniques, the transversus abdominis plane (TAP) block and the quadratus
lumborum block (QLB), have been shown in multiple studies to reduce post-operative opioid
consumption after CS. A recent randomized controlled trial showed that QLB is more effective
in reducing morphine consumption post-CS compared to TAP. No randomized controlled trial to
date, however, compared the analgesic effect of QLB with infiltration of the wound after CS.
The objective of the study is to compare the analgesic effect of QLB type 2 with wound
infiltration after CS.