Does continuous wound infiltration enhance baseline intravenous multimodal analgesia after posterior spinal fusion surgery? A randomized, double-blinded, placebo-controlled study

Purpose There has been a growing interest in continuous local anaesthetic wound infiltration as a non-opioid technique for postoperative pain relief. The impact of this modality on baseline analgesia after spinal fusion surgery has however been inconclusive. We tested whether continuous wound infiltration with ropivacaine can enhance postoperative analgesia compared to a baseline intravenous multimodal analgesia protocol after spinal fusion surgery.