Intraarticular Analgesia After Total Knee Arthroplasty, a Randomised Study

October 12, 2006 updated by: University of Aarhus

Postoperative Analgesia After Total Knee Arthroplasty. A Comparison of Continuous Femoral Block and Extensive Intraoperative Infiltration With Local Anesthetic Supplemented With Intraarticular Bolus the Following Day.

The study aims to compare two different kinds of pain treatment after total knee replacement (operation with artificial knee joint): 1) a large local injection in and around the knee, supplemented with injection the day after, or 2) the department's conventional pain treatment consisting of continuous nerve block in the groin.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Postoperative pain after total knee arthroplasty is moderate to severe and can be difficult to treat. The current use of femoral nerve block by ropivacain pump for 48 hours provides considerable analgesia, but patients often experience slight motor block, inhibiting rehabilitation, and pain in the posterior part of the knee, innervated by the sciatic nerve. This study compares femoral nerve block to a new technique, where ropivacaine, ketorolac and adrenalin is used to infiltrate the tissue in and around the knee joint during surgery, and is injected by an intraarticular catheter at 10 pm on the day of surgery and again at 10 am the day after. Data of pain scores, analgesia consumption, adverse effects and mobilisation is collected for the first four postoperative days.

Study Type

Interventional

Enrollment

80

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

  • Denmark
      • Aarhus, Denmark, DK-8000
        • Aarhus Hospital, Tage Hansens Gade

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

1 second and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • patients planned for primary total knee arthroplasty due to primary arthrosis

Exclusion Criteria:

  • Patients unable to provide informed consent
  • patients with contraindications for spinal anesthesia
  • patients with known hypersensitivity towards the used drugs
  • patients with severe chronic neurogenic pain or sensitivity disorders in the leg to be operated
  • patients who have undergone major bone surgery in the knee to be operated

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)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
side effects
pain, by numeric rating scale
pain, by consumption of analgesics
return of function

Collaborators and Investigators

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

Sponsor

University of Aarhus

Collaborators

Aarhus University Hospital
The Danish Medical Research Council

Investigators

  • Principal Investigator: Kjeld Søballe, Professor, Orthopedic Center, Aarhus University Hospital, Aarhus, Denmark
  • Principal Investigator: Else Tønnesen, Professor, Department of Anesthesiology, Aarhus University Hospital, Aarhus, Denmark

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

February 1, 2005

Study Completion

March 1, 2006

Study Registration Dates

First Submitted

December 22, 2005

First Submitted That Met QC Criteria

December 22, 2005

First Posted (Estimate)

December 23, 2005

Study Record Updates

Last Update Posted (Estimate)

October 13, 2006

Last Update Submitted That Met QC Criteria

October 12, 2006

Last Verified

October 1, 2006

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • 20050003

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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