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Clinical Trials/NCT06653621
NCT06653621
Not yet recruiting
Phase 4

Effect of Bupivacaine Liposomes or Bupivacaine for Femoral Triangle or Adductor Block on Analgesia After Total Knee Replacement: a Prospective, Single-center, Simple Randomized, Active-controlled, Single-blind, 2x2 Factorial Design Clinical Study

Huazhong University of Science and Technology1 site in 1 country144 target enrollmentNovember 5, 2024

Overview

Phase
Phase 4
Intervention
Bupivacaine liposome
Conditions
Knee Arthropathy
Sponsor
Huazhong University of Science and Technology
Enrollment
144
Locations
1
Primary Endpoint
Opioid consumption 72 hours after surgery
Status
Not yet recruiting
Last Updated
last year

Overview

Brief Summary

The purpose of this study was to investigate the effect of bupivacaine liposomes on postoperative pain in TKA ( total knee replacement ) patients.The main questions answered are:

  1. Is bupivacaine liposomes superior to bupivacaine in femoral triangle block or adductor block in terms of 72 hours opioid consumption after knee replacement
  2. Which block method(Femoral triangle block or adductor block) combined with bupivacaine liposome was more effective in alleviating pain score and 72 hours opioid consumption after total knee surgery.

investigators will investigate the effect of bupivacaine liposomes combined with bupivacaine and pure bupivacaine on pain after total knee arthroplasty using femoral triangle block or adductor block.

Participants will:

  1. Receive liposomal bupivacaine or bupivacaine as a regional anesthetic for femoral triangle block or adductor block under ultrasound guidance.
  2. Undergo total knee replacement surgery under spinal anesthesia.
  3. Follow-up within 72 hours after surgery , opioid consumption, NRS score, PCA(Patient controlled analgesia,PCA) data, first postoperative remedial analgesia time, quadriceps muscle strength and complications were recorded

Detailed Description

The patients received femoral triangle block plus iPACK(infiltration between popliteal artery and capsule of knee) block or adductor canal block plus iPACK block during induction . The local anesthetic formulation was bupivacaine (0.75% bupivacaine hydrochloride 10ml+ normal saline 20ml) or bupivacaine liposome (0.75% bupivacaine hydrochloride 10ml+ bupivacaine liposome 20ml(266mg)).

Registry
clinicaltrials.gov
Start Date
November 5, 2024
End Date
December 31, 2025
Last Updated
last year
Study Type
Interventional
Study Design
Factorial
Sex
All

Investigators

Responsible Party
Principal Investigator
Principal Investigator

Wei Mei

clinical professor

Huazhong University of Science and Technology

Eligibility Criteria

Inclusion Criteria

  • Patients with ASAI-ⅲ
  • Receive a unilateral initial TKA
  • Age 18-80 years old -

Exclusion Criteria

  • Bilateral TKA surgery
  • TKA revision surgery
  • Contraindications for nerve block and intraspinal anesthesia
  • Allergies to local anesthetics
  • Diabetic neuropathy
  • Patients who are unable to cooperate with the evaluation
  • Chronic use of opioid analgesics
  • BMI≥35kg/cm2
  • Cases of lumbar anesthesia failure requiring general anesthesia surgery
  • Cases of nerve block failure

Arms & Interventions

adductor block+ Bupivacaine liposomes and bupivacaine mixture

The patient underwent ultrasound-guided bupivacaine liposome mixture single adductor block during anesthesia induction room for analgesia after total knee arthroplasty .

Intervention: Bupivacaine liposome

adductor block+ bupivacaine

The patient underwent ultrasound-guided bupivacaine single adductor block during anesthesia induction room for analgesia after total knee arthroplasty

Intervention: Bupivacaine

femoral triangle block + Bupivacaine liposomes and bupivacaine mixture

The patient underwent ultrasound-guided bupivacaine liposome mixture single femoral triangle block during anesthesia induction room for analgesia after total knee arthroplasty .

Intervention: Bupivacaine liposome

femoral triangle block + bupivacaine

The patient underwent ultrasound-guided bupivacaine single femoral triangle block during anesthesia induction room for analgesia after total knee arthroplasty .

Intervention: Bupivacaine

Outcomes

Primary Outcomes

Opioid consumption 72 hours after surgery

Time Frame: this outcome will be monitored and recorded within 72 hours postoperatively

This primary outcome entails tracking and assessing the total opioid consumption by participants following total knee 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.

Secondary Outcomes

  • Pain intensity(Pain intensity will be measured at 8 time points: 6 hours, 12 hours, 18 hours and 24 hours 36 hours, 48 hours, 60 hours, 72 hours post-surgery)
  • Time to First Rescue Analgesic(72 hours after surgery)
  • Total opioid dosage and PCA times(Total opioid dosage and PCA times were recorded at 8 time points: 6 hours, 12 hours, 18 hours and 24 hours 36 hours, 48 hours, 60 hours, 72 hours post-surgery)
  • Quadriceps muscle strength(24.48,72 hours after surgery)

Study Sites (1)

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