Comparison of Three Kinds of Postoperative Analgesia After Total Knee Arthroplasty

Comparison of Three Kinds of Postoperative Analgesia After Total Knee Arthroplasty :a Randomized Clinical Trial

Postoperative pain after total knee arthroplasty (TKA) can be difficult to manage and may delay recovery. There are multimodal postoperative pain management after TKA, including intravenous opioids, epidural analgesia, peripheral nerve blocks or periarticular infiltration with local anesthetics. All of these treatments may lead to side effects such as nausea, headache, hypotension, urinary retention, partial motor block and infection of the knee. Therefore the investigators will compare three methods of postoperative analgesic after TKA by their efficiency and complication.

Study Overview

Study Type

Interventional

Enrollment (Anticipated)

45

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • Guangdong
      • Guangzhou, Guangdong, China, 510010
        • Recruiting
        • Guangzhou Military Region General Hospital, Department of Anesthesiology
        • Contact:
          • Tao Zhi Li
          • Phone Number: 86 15625052815
          • Email: lytow@qq.com

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 85 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Patients of American Association of anesthetists(ASA)Grade 1、2 or 3
  2. Aged between 18 and 85 years
  3. Undergoing elective total knee replacement

Exclusion Criteria:

  1. Mental illness can not match
  2. Nerve block, epidural anesthesia contraindicated
  3. People who have Slow-type arrhythmias
  4. History of chronic headaches and long-term use of analgesic drugs
  5. People who were postoperative consciousness, language or hearing impaired

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Local analgesic
This group uses local analgesia infusion pump of 0.2% ropivacaine 360ml through periarticular infiltration for postoperative analgesia.
Patient will be performed under combined lumbar plexus and sciatic nerve block with 0.33% ropivacaine.At the end of surgery,two catheters are left in the wound.One is intraarticular and the other is on the surface of articular cavity.And then a pump elastomeric infusion pump will be connected with the catheters, which runs 5mL every hours.
0.2% ropivacaine
Active Comparator: Nerve Block
People in this group will receive a postoperative pain management by continuous lumbar plexus block with 0.2% ropivacaine.
0.2% ropivacaine
Combined lumbar plexus and sciatic nerve block with 0.33% ropivacaine will be performed before the surgery.After the a bolus of 30mL ropivacaine around lumbar plexus,a catheter will be left in Psoas gap with 6cm.A pump elastomeric infusion pump running 5mL every hours will also be connected with the catheters at the end of the operation.
Active Comparator: Intravenous analgesic
This group is treated with intravenous electronic analgesia pump infusion of flurbiprofen axetil 250mg,palonosetron 0.5mg,pentazocine 240mg.dezocine 30mg.
People in this group will also receive an anesthesia of combined lumbar plexus and sciatic nerve block with 0.33% ropivacaine.An intravenous electronic analgesia pump infusion of flurbiprofen axetil 250mg,palonosetron 0.5mg,pentazocine 240mg.dezocine 30mg will will provide postoperative pain management.The patients will received a 2 mL/h continuous basal infusion and 1 mL boluses with a lockout time of 30 min after a 5 mL Loading dose at the end of the surgery.
flurbiprofen axetil 250mg,palonosetron 0.5mg,pentazocine 240mg.dezocine 30mg

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
pain
Time Frame: 72 hours postoperation
Up to 72 hours after operation,postoperative pain visual analogue scale(VAS) scores are used to evaluate the level of pain.
72 hours postoperation

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
sedation
Time Frame: 72 hours postoperation
At 2, 4, 6, 12, 24, 36, 48,72 hours after operation,sedation OAA/S scores are used to evaluate the level of sedation.
72 hours postoperation
complication
Time Frame: 72 hours postoperation
Investigators document the incidence of nausea,vomiting,headache,urinary retention and et al.
72 hours postoperation

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2014

Primary Completion (Anticipated)

June 1, 2016

Study Completion (Anticipated)

June 1, 2016

Study Registration Dates

First Submitted

March 19, 2014

First Submitted That Met QC Criteria

March 20, 2014

First Posted (Estimate)

March 21, 2014

Study Record Updates

Last Update Posted (Estimate)

March 12, 2015

Last Update Submitted That Met QC Criteria

March 11, 2015

Last Verified

March 1, 2015

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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