ArticleCureus2025
Comparative Analysis of Pericapsular Nerve Group (PENG) Block Versus Femoral Nerve Block for Postoperative Pain Management in Total Hip Arthroplasty: An Observational Prospective Study.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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9 authors.
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Abstract
introductionTotal hip arthroplasty (THA) improves patient mobility and quality of life but is also associated with postoperative pain. Effective pain management is crucial for early postoperative mobility and optimal recovery. Regional analgesia techniques such as femoral nerve block (FNB) are commonly used, but recent studies suggest the pericapsular nerve group (PENG) block may provide superior hip analgesia with less motor impairment.
objectivesThis study compares the effectiveness of PENG block versus FNB concerning postoperative analgesia and motor block sparing in THA patients. MATERIALS AND
methodsAn observational prospective study was conducted at the Unidade Local de Saúde da Região de Leiria, with data collected from January 2023 to April 2024. Patients aged 18 years or older undergoing primary THA and receiving either a PENG block or an FNB were included.
resultsA total of 55 patients (17 in the FNB group and 38 in the PENG group) participated in this study. Both blocks effectively reduced postoperative pain scores with no significant differences between groups, demonstrating their efficacy in pain management. Postoperative knee extension motor scores were significantly higher in the PENG group compared to the FNB group (1.52 vs. 1.17, p=0.036), indicating better preservation of motor function. Similarly, leg adduction motor scores were higher in the PENG group than in the FNB group (1.50 vs. 1.29, p=0.02).
conclusionThe PENG block demonstrated superior motor function preservation and longer analgesia following THA compared to the FNB. The PENG block may offer a clinical advantage in facilitating earlier mobilization and improving overall recovery outcomes post-surgery.
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