This randomized clinical trial aims to evaluate and compare the analgesic efficacy and functional outcomes of the quadro-iliac plane block (QIPB) and the pericapsular nerve group (PENG) block combined with lateral femoral cutaneous nerve(LFCN) block in patients undergoing total hip arthroplasty. The primary outcome is the Numeric Rating Scale (NRS) within the first 48 hours after surgery. Secondary outcomes include postoperative total opioid consumption, ıncidence of quadriceps motor block, time to first ambulation, block performance time, falls, length of hospital stay, block- related complications(hematoma,local anesthetic systemic complications, vascular puncture, and infection), patient satisfaction assessed using a Likert scale, and incidence of postoperative nausea and vomiting.