Catheter Orifice Configuration (Six-hole Versus End-hole) on Post-operative Analgesia After Total Knee Arthroplasty.

December 12, 2017 updated by: FOURNIER ROXANE, University Hospital, Geneva

Ultrasound-guided Continuous Femoral Nerve Block: The Influence of Catheter Orifice Configuration (Six-hole Versus End-hole) on Post-operative Analgesia After Total Knee Arthroplasty. A Randomized Trial.

Multiorifice catheters have been shown to provide superior analgesia and significantly reduce local anesthetic consumption compared with end-hole catheters in epidural studies. This prospective, blinded, randomized study tested the hypothesis that, in continuous femoral nerve block (CFNB) under ultrasound guidance, multiorifice catheter would reduce local anesthetic consumption at 24h compared with end-hole catheter.

Study Overview

Status

Completed

Conditions

Detailed Description

Eighty adult patients (aged ≥18 years) scheduled to undergo primary total knee arthroplasty under a combination of continuous femoral nerve block (CFNB), sciatic nerve block and general anesthesia were randomized to CFNB using either a 3-pair micro-hole (Contiplex, BRAUN®, 20G - 400 mm) or an end-hole (Silverstim VYGON®, 20G - 500 mm) catheter. Once the femoral catheter was sited, a bolus of 20 mL lidocaine 1% was injected. An electronic pump then delivered an automated 5 mL bolus of ropivacaine 0.2% hourly, with 10 mL self-administered patient controlled analgesia boluses.

Study Type

Interventional

Enrollment (Actual)

72

Phase

  • Not Applicable

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

      • Geneva, Switzerland, 1211
        • University Hospitals of Geneva

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 and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • every patient accepting a conitnuous femoral nerve catheter

Exclusion Criteria:

  • pregnancy,
  • any contraindication to peripheral nerve blockade,
  • pre-existing peripheral nerve neuropathy,
  • allergy to LA (study medications),
  • ASA score ≥4,
  • neurologic or neuromuscular disease,
  • psychiatric disease,
  • renal failure,
  • hepatic failure,
  • chronic opioid therapy,
  • NSAID contraindication,
  • inability to use a patient controlled analgesia (PCA) device, g
  • enu valgum,
  • infection at the injection site or
  • withdrawal of consent.

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
EXPERIMENTAL: six-hole group
lidocaine and ropivacaine injection through catheters
injection of local anesthetic through an endhole or a sixhole femoral nerve catheter in the context of total knee replacement. Analgesic properties at 24 and 48h of both groups registered.
ACTIVE_COMPARATOR: end-hole group
lidocaine and ropivacaine injection through catheters
injection of local anesthetic through an endhole or a sixhole femoral nerve catheter in the context of total knee replacement. Analgesic properties at 24 and 48h of both groups registered.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
total LA consumption at 24h
Time Frame: 24h after connecting PCA to the femoral nerve catheter
total ropivacaine consumption at 24h in mL
24h after connecting PCA to the femoral nerve catheter

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
total LA consumption at 48h
Time Frame: 48h after connecting PCA to the femoral nerve catheter
total ropivacaine consumption at 48h in mL
48h after connecting PCA to the femoral nerve catheter
number of boluses of ropivacaine at 24h
Time Frame: 24h after connecting PCA to the femoral nerve catheter
total ropivacaine boluses received at 24h in numbers
24h after connecting PCA to the femoral nerve catheter
number of boluses of ropivacaine at 48 h
Time Frame: 48h after connecting PCA to the femoral nerve catheter
total ropivacaine boluses received at 48h in numbers
48h after connecting PCA to the femoral nerve catheter
quadriceps strength before surgery and 24h and 48h after surgery
Time Frame: quadriceps strenght before performing femoral nerve block and 24 and 48h after performing the block
quadriceps strength measured with with an electronic dynamometer in N.m and percentage of preblock value of MVIC
quadriceps strenght before performing femoral nerve block and 24 and 48h after performing the block
morphine requirements at 24h and 48h
Time Frame: morphine consumption at 24h and 48h after completion of surgery
rescue morphine 24h and 48h in mg
morphine consumption at 24h and 48h after completion of surgery

Collaborators and Investigators

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

Investigators

  • Study Director: Martin Tramer, Anesthesiology department Of University Hospital of Geneva

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.

General Publications

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 (ACTUAL)

May 1, 2014

Primary Completion (ACTUAL)

April 1, 2015

Study Completion (ACTUAL)

April 1, 2015

Study Registration Dates

First Submitted

December 12, 2017

First Submitted That Met QC Criteria

December 12, 2017

First Posted (ACTUAL)

December 18, 2017

Study Record Updates

Last Update Posted (ACTUAL)

December 18, 2017

Last Update Submitted That Met QC Criteria

December 12, 2017

Last Verified

December 1, 2017

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

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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