Introduction
postoperative pain, postoperative quadriceps muscle strength, infection, Total hip arthroplasty, hematoma, catheter detachment, THA, nausea, vomiting
ADVERSE EVENTS, INFECTION, THROMBOEMBOLIC EVENT, HEMATOMA
The hip joint, a crucial ball-and-socket joint essential for lower limb mobility [Total hip arthroplasty (THA) is a commonly employed procedure for FNF treatment. However, severe postoperative pain following THA delays motor function recovery, increases the risk of hospitalization and thromboembolic events, and adversely affects long-term patient outcomes [This study aims to compare the analgesic efficacy and safety of continuous PENG block with continuous FICB during the perioperative period in elderly patients with FNF. The primary outcomes to be evaluated include the numerical rating scale (NRS) scores at rest and during exercise, recorded prior to block (T0), 30 min post-blockade (T1), and at 6 h (T2), 12 h (T3), 24 h (T4), and 48 h (T5) postoperatively. Secondary outcomes encompass postoperative quadriceps muscle strength, the time of initial ambulation after surgery, the number of effective patient-controlled neural analgesia (PCNA) activations, rescue analgesia requirements, and occurrences of adverse events (such as nausea, vomiting, hematoma, infection, catheter detachment, or displacement) within 48 h following surgery.