Riassunto dello studio

Eighty six adult patients undergoing total hip arthroplasty were randomized to receive either a pericapsular nerve group (PENG) block combined with wound infiltration (WI) (n=43) or a modified supra-inguinal fascia iliaca compartment block (S-FICB)(n=43). The primary outcome was pain at rest and during hip adduction at 6 hours postoperatively. Secondary outcomes included pain scores at 12, 24, 48 hours and postoperative day 5, incidence of quadriceps motor block, MAP changes, PCIA use, and adverse effects. Outcomes were assessed up to 5 days postoperatively. Overall, the results revealed that PENG block with wound infiltration resulted in significantly lower pain scores at 6 and 12 hours and significantly less quadriceps motor block at 6 and 12 hours postoperatively. These findings suggest that PENG block with wound infiltration is a motor-sparing analgesic strategy suitable for early ambulation and enhanced recovery protocols.