Background and Aims After surgical correction of proximalfemoralfractures or total hip arthroplasty severe pain scores are expected. Insufficient pain control in the postoperative period compromises recovery and increases the risk of developing chronic pain. Pericapsular nerve group (PENG) block, described in 2018, is an interfascial plane block that targets the articular branches of the femoral, obturator, and accessory obturator nerves. Blocked branches convey nociceptive information, preserving motor function and, as such, early ambulation and active collaboration in rehabilitation programs are favored. This study aims to compare the analgesia provided by PENG block with that obtained by performing femoral nerve block or iliac fascia block.
Methods A retrospective study was performed including patients from 2018 to 2022 who underwent total hip arthroplasty or surgical correction of traumatic proximalfemoralfractures. The effectiveness of PENG block, iliac fascia block and femoral nerve block was compared by using pain scores and requirement of rescue analgesia. This work was approved by the ethic committee.
Results A total of 479 patients were enrolled for this study. Comparing the different techniques of locoregional analgesia performed, no differences were found.
Conclusions The PENG block appears to be an easy-to-perform technique with the benefit of preserving motor function associated with adequate control of postoperative pain, allowing adherence to early rehabilitation programs, reducing the risk of falls and patient satisfaction.
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