• Won Uk Koh, Hyungtae Kim, Yeon Ju Kim, Ji In Park, Hyun-Jin Yeo, Young-Jin Ro, and Ha-Jung Kim.
• Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
• Reg Anesth Pain Med. 2024 Jun 12.

BackgroundPatients with hip fracture often experience severe pain, particularly during movement or slight positional change, prior to the occurrence of surgery. It is essential to explore the appropriate analgesic methods before surgery in patients with hip fracture, especially those capable of alleviating dynamic pain. Pericapsular nerve group (PENG) block was introduced as a useful technique for hip analgesia. In this study, we aimed to compare the reduction in dynamic pain between the PENG block and supra-inguinal fascia iliaca compartment block (SIFICB).MethodsThis prospective trial included 80 hip fracture patients aged ≥19 years, with an American Society of Anesthesiologists Physical Status of 1-4 and a baseline dynamic pain score ≥4 on the numerical rating scale. The patients were randomly allocated into the PENG block (n=40) and SIFICB group (n=40). For the PENG block and SIFICB, 20 mL and 30 mL of 0.3% ropivacaine was used, respectively. The primary outcome was reduction in dynamic pain scores at 30 min following the peripheral nerve block. Dynamic pain score was evaluated when the leg was passively raised.ResultsA total of 79 patients were included in the final analysis, and the reductions in pain score during hip flexion were 3.1±2.4 and 2.9±2.5 in the PENG block and SIFICB groups, respectively, which was statistically insignificant (p=0.75). Moreover, no significant differences were observed in any of the outcomes.ConclusionsPENG block and SIFICB could effectively provide analgesia for dynamic pain in patients with hip fractures, with no significant difference between the two groups.Trial Registration NumberNCT04677348.© American Society of Regional Anesthesia & Pain Medicine 2024. No commercial re-use. See rights and permissions. Published by BMJ.

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