The goal of this randomized controlled clinical trial is to compare peri-capsular nerve group (PENG) block and quadratus lumborum (QL) block in participants who receive hip arthroplasty. The main question aims to answer is comparing the pain score among participants who receive PENG or QL block. Participants will be randomized and assigned into two groups. Participants will receive a PENG block in the PENG group and receive a QL block in the QL group. After participants receive hip arthroplasty, the investigators will compare the two groups to see if there is a difference of pain score, postoperative opioid consumption, sensation and motor function after nerve blocks, progress of functional recovery in lower limbs, intraoperative and postoperative complications.
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Comparing pain scores between the PENG and QL groups immediately after surgery
Timeframe: 10 minutes after surgery
Comparing pain scores between the PENG and QL groups at the 1-hour postoperative mark
Timeframe: at the 1-hour postoperative mark
Comparing pain scores between the PENG and QL groups at the 12-hour postoperative mark
Timeframe: at the 12-hour postoperative mark
Comparing pain scores between the PENG and QL groups at the 24-hour postoperative mark
Timeframe: at the 24-hour postoperative mark
Comparing pain scores between the PENG and QL groups at the 48-hour postoperative mark
Timeframe: at the 48-hour postoperative mark