Analgesic Efficacy of Adding SCB With Low Concentration Bupivacaine Combined With Dexamethasone on Pain After TKA

April 2, 2018 updated by: Mahidol University

Analgesic Efficacy of Adding SCB With Low Concentration Bupivacaine Combined With Dexamethasone to ACB and Periarticular Injection on Postoperative Pain After TKA: Randomized Controlled Study

This study evaluate the efficacy of adding popliteal sciatic nerve block with low concentration bupivacaine and dexamethasone to abductor canal block for total knee arthroplasty in patient with NSAIDs prescribing precaution. Half of participants will receive popliteal sciatic nerve block, abductor canal block and periarticular injection, while the other half will receive a sham block, abductor canal block and periarticular injection.

Study Overview

Detailed Description

After informed and consent, all patients will be devided into two groups, Sciatic group (group S) and Controlled group (group C). All patients will receive adductor canal block, then patients in group S will receive Sciatic nerve block with low concentration bupivacaine and dexamethasone while partients in group C will receive sham block. All patient will receive spinal anesthesia and intraoperative periarticular injection.

Postoperative pain score, muscle strength, total morphine consumption and adverse events will be record in case record form.

Study Type

Interventional

Enrollment (Anticipated)

50

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 Locations

    • Bangkok
      • Bangkoknoi, Bangkok, Thailand, 10700
        • Siriraj Hospital, Mahidol University

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

50 years to 85 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • patient scheduled for single total knee arthroplasty
  • patient with NSAIDs prescribing precautions such as history of NSAIDs allergy, Chronic kidney disease (GFR< 50 ml/min), history of ischemic heart disease or cerebrovascular disease

Exclusion Criteria:

  • patient refusal
  • body weight less than 45 kg
  • history of allergy to bupivacaine or dexamethasone
  • uncontrolled diabetes mellitus
  • contraindicated for spinal block, adductor canal block or sciatic nerve block
  • inability to assess pain score (cognitive or psychiatric history)
  • patient scheduled for revision TKA
  • preexisting neuropathy or neurological deficit in lower extremity
  • preexisting chronic pain (prolonged use of oral morphine 20 mg/day or equivalent)

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
  • Masking: TRIPLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
SHAM_COMPARATOR: control group
adductor canal block with sham block
ultrasound
adductor canal block with 0.33% bupivacaine 15 ml with ultrasound at popliteal sciatic area and subcutaneous infiltration popliteal area with 2% lidocaine 1 ml
EXPERIMENTAL: sciatic group
adductor canal block with popliteal sciatic nerve block
ultrasound
adductor canal block with 0.33% bupivacaine 15 ml with ultrasound guided popliteal sciatic block with 0.125% bupivacaine 20 ml and dexamethasone 5 mg
Other Names:
  • bupivacaine

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
postoperative pain score at rest
Time Frame: postoperative 24 hours
postoperative pain score at rest at 24 hour
postoperative 24 hours

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
postoperative pain score at anterior and posterior site of knee
Time Frame: postoperative 24 hours
postoperative pain score at anterior and posterior site of knee at 24 hour
postoperative 24 hours
postoperative pain score on 45 degree knee flexion and physical therapy
Time Frame: postoperative 24 hours
postoperative pain score on 45 degree knee flexion and physical therapy
postoperative 24 hours
level of tibialis anterior muscle weakness
Time Frame: postoperative 24 hours
level of tibialis anterior muscle weakness in 24 hour
postoperative 24 hours
adverse events
Time Frame: postoperative 24 hours
perioperative adverse events such as LAST, hypotension, nausea and vomitting
postoperative 24 hours
total morphine consumption in postoperative 24 hours
Time Frame: postoperative 24 hours
total morphine consumption in postoperative 24 hours
postoperative 24 hours
patient satisfaction
Time Frame: postoperative 24 hours
patient satisfaction score
postoperative 24 hours
length of hospital stay
Time Frame: 7 days
length of hospital stay
7 days

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Busara Sirivanasandha, MD, Department of Anesthesia, Siriraj hospital, Mahidol university

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 (ANTICIPATED)

April 1, 2018

Primary Completion (ANTICIPATED)

February 1, 2019

Study Completion (ANTICIPATED)

February 1, 2019

Study Registration Dates

First Submitted

March 15, 2018

First Submitted That Met QC Criteria

April 2, 2018

First Posted (ACTUAL)

April 3, 2018

Study Record Updates

Last Update Posted (ACTUAL)

April 3, 2018

Last Update Submitted That Met QC Criteria

April 2, 2018

Last Verified

March 1, 2018

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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.

Yes

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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