Analgesic efficacy of Pericapsular Nerve Group (PENG) block compared with Fascia Iliaca Block (FIB) in the elderly patient with fracture of the proximal femur in the emergency room. A randomised controlled trial.

Data on the efficacy of PENG (Pericapsular Nerve Group) block in hip trauma pain are scarce. We hypothesized that PENG block was more effective than infra-inguinal ultrasound-guided FIB (Fascia Iliaca block) for pain control in patients aged 65 years or older presenting in the emergency room (ER) with traumatic proximal femoral fracture. We conducted an exploratory, double-blind, randomized controlled trial. One anaesthesiologist performed the block and another assessed outcomes. Patients were randomly allocated to the PENG group (20 ml ropivacaine 0.375%) or the infrainguinal FIB group (40 ml ropivacaine 0.2%). Standard hypothesis tests (t test or χ After obtaining ethical committee approval and written informed consent, 60 patients were included. The primary endpoint was achieved in 16 out of 30 patients (53.3%) in the PENG group and in 15 out of 28 patients (53.6%) in the FIB group. Comparison between groups did not show superiority of the PENG vs FIB (P-value .98). PENG block does not provide better pain than FIB in proximal femoral fracture in elderly patients treated in the ER.

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