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  • Title: The Efficacy of Pericapsular Nerve Group Block Versus Facia Iliaca Block on Immediate Postoperative Pain and Opioid Consumption After Hip Arthroscopy Randomized Trial.
    Author: Noaman SS, Abdallah ES, Elsawy SMA, Abd El-Radi M, Kamel MM.
    Journal: Pain Physician; 2023 Jul; 26(4):357-367. PubMed ID: 37535774.
    Abstract:
    BACKGROUND: Postoperative pain after hip arthroscopy remains a major cause of patient dissatisfaction in the immediate postoperative period. Adequate postoperative analgesia is associated with increased patient satisfaction, earlier mobilization, and decreased opioid consumption. OBJECTIVES: Therefore, there is a need for safe, reliable, and opioid- and motor-sparing methods of achieving postoperative analgesia following hip arthroscopy. We evaluated the efficacy of pericapsular nerve group (PENG) block vs fascia iliaca block (FIB) in reducing postoperative pain and analgesic consumption in the first 24 hours following hip arthroscopy. STUDY DESIGN: A prospective randomized double-blinded control clinical trial. SETTING: At the arthroscopy unit of the orthopedic department of Assiut University Hospitals, Assiut, Egypt from 2019 to 2022. METHODS: Forty-three patients comprising 18 women and 25 men scheduled for hip arthroscopy were randomized to receive a preoperative block with PENG or FIB from March 2019 to March 2022. The mean age was 27.9 years (standard deviation [SD], 6.2 years; range, 18-42 years) and the mean body mass index was 25.13 kg/m2 (SD, 5.08 kg/m2). Patients were randomized into 2 groups: group A comprising 20 patients that received FIB; and group B comprising 23 patients that received PENG block. The efficacies of FIB and PENG block were evaluated using Visual Analog Scale scores. RESULTS: Statistically significant differences in median pain scores and mean at rest pain scores were observed between the 2 groups at all measured time points following surgery (i.e., 6, 12, 18, and 24 hours). Further, dynamic pain scores (with hip flexion) scores significantly differed between the 2 groups at 24 hours postoperatively (P = 0.001). PENG block significantly decreased postoperative opioid use compared to FIB. Total opioid use in the 24-hour postoperative period was lower in the PENG group compared to the FIB group (16.5 ± 9.9 vs 27.5 ± 9.6; P < 005). LIMITATIONS: Different hip pathologies and different interventions lead to different outcomes. Also, a larger sample size and longer follow-up duration are required. CONCLUSIONS: PENG block may represent the ideal regional anesthesia modality for hip arthroscopy as an alternative to more conventional regional nerve blocks, such as FIB, femoral nerve block, and lumbar plexus block. PENG block is reproducible, easily performed in the preoperative setting, and appears to spare motor function while providing prolonged sensory analgesia.
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