Abstract

PurposeThe purpose of this retrospective study was to determine the effectiveness of pericapsular nerve group (PENG) block for pain control intraoperatively in patients undergoing total hip arthroplasty (primary-27130) (THA), compared to opioid based analgesia. The PENG block is an emerging regional anesthesia technique that aims to provide hip analgesia with preservation of motor function offering benefit over existing regional techniques while reducing overall opioid requirements. DesignA retrospective cohort chart review and analysis. MethodsA single-site, retrospective chart review was performed for individuals undergoing THAs at a community hospital from 2019 to 2022 (N = 123). Anesthesia records were collected and observed for multiple data points including peripheral nerve block provided, micrograms of fentanyl administered before and during the case, additional medications given, and additional nerve blocks performed. The demographic data included birth date, sex, and procedure date. FindingsFor statistical analysis only, patients receiving PENG (59) were compared to those receiving only intravenous analgesia (No Block-57). Statistically and clinically significant reductions in fentanyl administration and morphine equivalents were found in the population receiving PENG blocks. The mean intraoperative fentanyl given to the No Block group was 292.98 mcg versus 50.42 mcg in the PENG group (P < .05). Mean morphine equivalents given in the No Block group was 23.51 mg versus 11.21 mg in the PENG group (P < .05). ConclusionsReceiving a PENG block preoperatively resulted in clinically and statistically significant opioid reduction during the perioperative period when compared with patients who did not receive a regional block.

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