The goal of this clinical trial is to study the analgesic effect of liposomal bupivacaine plus bupivacaine for Pericapsular Nerve Group (PENG) block in postoperative pain management following hip replacement surgery. It will also assess the safety of liposomal bupivacaine for this purpose. The main questions it aims to answer are:
1. Is liposomal bupivacaine plus bupivacaine superior to ropivacaine in terms of analgesic efficacy, duration of pain relief, opioid consumption, and patient satisfaction? 2. What medical problems do participants encounter when using liposomal bupivacaine plus bupivacaine for PENG block in postoperative pain management following hip replacement surgery?
Researchers will compare liposomal bupivacaine plus bupivacaine to ropivacaine (a routinely used regional anesthetic in clinical practice) to determine if liposomal bupivacaine plus bupivacaine is more effective for pain management following hip replacement surgery.
Participants will:
1. Receive liposomal bupivacaine plus bupivacaine or ropivacaine as a regional anesthetic for PENG block under ultrasound guidance. 2. Undergo hip replacement surgery under spinal anesthesia. 3. Have pain relief, opioid analgesic consumption, and incidence of complications assessed at multiple time points within 72 hours after surgery.
American Society of Anesthesiologists(ASA) I~II
Normal coagulation
Clinical diagnosis of hip fracture
Presence of severe systemic diseases or ASA grade III or higher
Allergy to amide local anesthetics
Parallel
Liposomal bupivacaine plus bupivacaine
DrugLiposomal bupivacaine is a prolonged-release formulation of the local anesthetic bupivacaine. This intervention involves the administration of liposomal bupivacaine plus bupivacaine as a local anesthetic for the pericapsular nerve group (PENG) block under ultrasound guidance. Liposomal bupivacaine is being investigated for its analgesic effect in postoperative pain management following hip replacement surgery. This formulation is designed to provide extended pain relief as compared to conventional bupivacaine formulations.
Ropivacaine
DrugRopivacaine is a commonly used local anesthetic in clinical practice, and it serves as the active comparator intervention in this study. Participants in the comparator arm will receive ropivacaine as a local anesthetic for the PENG block under ultrasound guidance.
Overall Opioid Consumption
This primary outcome entails tracking and assessing the total opioid consumption by participants following hip replacement surgery. The evaluation includes quantifying the amount of opioids prescribed and consumed by participants for pain management post-surgery. Opioid medications administered will be converted to morphine equivalents based on established conversion ratios. By analyzing overall opioid consumption, the study aims to evaluate the efficacy of the interventions in managing postoperative pain.
Pain intensity
Pain intensity will be assessed using the Numerical Rating Scale (NRS), a 0-10 scale where 0 represents no pain and 10 represents the worst imaginable pain. Pain intensity will be measured at 10 time points: at baseline, 30min after PENG block, at Post Anesthesia Care Unit(PACU), 6 hours, 12 hours, and 24 hours 36 hours, 48 hours, 60 hours, 72 hours post-surgery.
Time to First Rescue Analgesic
Time to first rescue analgesic will be recorded as the interval from the end of the surgery to the administration of the first dose of rescue analgesic medication postoperatively.
Incidence of Complications or Adverse Events
This outcome focuses on monitoring and documenting any adverse events or complications that may arise as a result of the interventions, including liposomal bupivacaine and ropivacaine, during postoperative care following hip replacement surgery. The assessment involves the systematic identification, recording, and analysis of any untoward effects, adverse reactions, or complications experienced by participants attributable to the administered interventions. The aim is to evaluate the safety profile of both interventions and compare the incidence of complications between the treatment groups to ensure patient safety and well-being throughout the study period.
Duration of Hospital Stay
The duration of hospital stay is a significant secondary outcome that involves recording and comparing the length of time each participant remains hospitalized following hip replacement surgery. This outcome provides insight into the postoperative recovery process and the potential impact of the administered interventions, including liposomal bupivacaine and ropivacaine, on the participants' recovery trajectory. Assessing the duration of hospitalization allows for the evaluation of factors such as pain management, mobility, and postoperative care that may influence the participants' readiness for discharge.
Click on the lead sponsor to view all of their trials.
