NCT01726686

Brief Summary

The purpose of this study is to evaluate the effect on postoperative pain and function by adding intraarticular continuous infusion pump with local anesthetic after total knee arthroplasty where local infiltration analgesia has already been given.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
200

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started Feb 2010

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 1, 2010

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2011

Completed
1.3 years until next milestone

First Submitted

Initial submission to the registry

October 30, 2012

Completed
16 days until next milestone

First Posted

Study publicly available on registry

November 15, 2012

Completed
1.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2014

Completed
Last Updated

November 26, 2014

Status Verified

November 1, 2014

Enrollment Period

1.4 years

First QC Date

October 30, 2012

Last Update Submit

November 24, 2014

Conditions

Keywords

Total Knee Arthroplasty

Outcome Measures

Primary Outcomes (1)

  • Change in postoperative pain

    The patient are asked to grade their pain on a VAS-scale (0-100)twice daily for the first 4 days after the TKA operation and at the 2 weeks follow-up. Changes in pain during this time frame are recorded to see if there are any differences between the two groups.

    The first 4 postoperative days at noon and 8 PM

Secondary Outcomes (1)

  • Extra oral analgesia consumption

    First 4 postoperative days

Other Outcomes (4)

  • Number of postoperative days in hospital

    Duration of hospital stay, an expected time frame of 4-5 days

  • Pre- and postoperative knee range of motion

    At preoperative admission for operation (about 2 weeks prior), day 4, 14 and 30 postoperatively

  • Postoperative complications

    2 years postoperatively

  • +1 more other outcomes

Study Arms (2)

Ropivacaine in the pump

ACTIVE COMPARATOR

The intra-articular Continuous Infusion Pump is filled with Ropivacaine,10 mg/ml, set at 2 ml/hour for 48 hours postoperatively.

Drug: Ropivacaine

Placebo in the pump

PLACEBO COMPARATOR

The intra-articular Continuous Infusion Pump is filled with NaCl, set at 2 ml/hour for 48 hours postoperatively.

Drug: Placebo

Interventions

100 ml Ropivacaine 10mg/ml in a continuous infusion pump set at 2 ml/hour

Also known as: Naropin, Narop
Ropivacaine in the pump
Placebo in the pump

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Primary osteoarthritis of the knee necessitating total knee replacement
  • Patients who understand the conditions of the study and are willing to participate for the length of the prescribed follow-up

You may not qualify if:

  • Known allergy to local anaesthetics or other contraindication for the use of local anaesthetics.
  • Treatment with Warfarin.
  • Bilateral operation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Orthopedics, Skane University Hospital, Lund University

Lund, Sweden

Location

MeSH Terms

Interventions

Ropivacaine

Intervention Hierarchy (Ancestors)

AnilidesAmidesOrganic ChemicalsAniline CompoundsAmines

Study Officials

  • Gunnar Flivik, MD PhD

    Dept of Orthopedics, Skane University Hospital, Lund University, Sweden

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor, MD PhD

Study Record Dates

First Submitted

October 30, 2012

First Posted

November 15, 2012

Study Start

February 1, 2010

Primary Completion

July 1, 2011

Study Completion

April 1, 2014

Last Updated

November 26, 2014

Record last verified: 2014-11

Locations