PENG Block vs. Intraoperative Local Anesthetic Infiltration for Total Hip Arthroplasty

Participants will receive a PENG block with local anesthetics (which is a freezing medication, in this case, 0.5% ropivacaine) before receiving spinal anesthesia. Patients in this group will also receive a sham ILAI procedure with 60 mL of saline (performed by the operating surgeon).

Participants will receive a sham PENG block performed with 20ml of normal saline solution before spinal anesthesia. After, patients will receive ILAI (performed by the operating surgeon) with a plain solution of ropivacaine 0.25% 60ml.