NCT01162720

Brief Summary

To establish whether a short duration of tourniquet application (from cement fixation to cement setting)is associated with better patient functional outcomes compared to a long duration of tourniquet application (from surgical incision to cement setting). It is hypothesised that tourniquet application during cement fixation only (approximately of 20-30 min duration) will be associated with less pain and impairment than a longer tourniquet application (\> 45 minutes).

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
65

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Nov 2008

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
terminated

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2008

Completed
1.7 years until next milestone

First Submitted

Initial submission to the registry

July 6, 2010

Completed
9 days until next milestone

First Posted

Study publicly available on registry

July 15, 2010

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2010

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2010

Completed
Last Updated

March 30, 2011

Status Verified

March 1, 2011

Enrollment Period

2.1 years

First QC Date

July 6, 2010

Last Update Submit

March 29, 2011

Conditions

Keywords

Primary knee replacementUnilateral knee replacement

Outcome Measures

Primary Outcomes (2)

  • Oxford Knee score

    Oxford knee score is a disease-specific patient perceived knee pain and function survey. It will be collected at baseline (within 2 months of surgery), and then at 10, 26 and 52 weeks post surgery.

    10 weeks post surgery

  • Donor blood transfusion rate

    The use of donor blood transfusion in the intra-operative and acute post-operative (hospitalisation) period will be recorded. Criteria for donor blood transfusion is according to the hospital's restrictive transfusion practices.

    Within the acute hospitalisation period (from Day 0 (surgery day), to day of discharge)

Secondary Outcomes (5)

  • Knee range of motion (ROM)

    ROM will be assessed pre-operatively (within 2 months of surgery), on day 4 post surgery, and at 2, 10,26 and 52 weeks post surgery

  • Quadriceps lag

    Lag will be assessed on Day 4 post surgery, and at 2, 10, 26 and 52 weeks post surgery.

  • timed stair test

    Measured at 2, 10,26 and 52 weeks post-surgery

  • Knee pain

    Measured on Day 4 post surgery

  • Analgesic consumption

    Measured over course of acute care (summation of day 0 to day of discharge)

Study Arms (2)

Short duration tourniquet

EXPERIMENTAL

Patients allocated to this group will have the pneumatic tourniquet applied to the index limb for approximately 20-30 minutes during cement fixation of the prosthesis.

Procedure: Short duration tourniquet

Long duration tourniquet

ACTIVE COMPARATOR

Patients randomised to this arm will have the tourniquet applied from commencement of surgery and removed just prior to skin closure.

Procedure: Long duration tourniquet

Interventions

Patients randomised to this arm will have the tourniquet applied at the commencement of surgery and removed prior to wound closure.

Long duration tourniquet

Patients assigned to this arm will have the tourniquet applied during cement fixation of the prosthesis only (ie removed just prior to wound closure).

Short duration tourniquet

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • primary, unilateral knee replacement;
  • capacity to understand the protocol;

You may not qualify if:

  • inability to read English;
  • current warfarin therapy (or similar);
  • significant PVD, peripheral arterial disease or diabetes rendering tourniquet use undesirable;
  • evidence of chronic or recent DVT in index limb;
  • thigh circumference \> 100 cm (approximately);
  • Jehovah's Witness (ie refusal to receive donor blood)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Fairfield Hospital

Sydney, New South Wales, 2176, Australia

Location

Related Publications (3)

  • Rama KR, Apsingi S, Poovali S, Jetti A. Timing of tourniquet release in knee arthroplasty. Meta-analysis of randomized, controlled trials. J Bone Joint Surg Am. 2007 Apr;89(4):699-705. doi: 10.2106/JBJS.F.00497.

    PMID: 17403789BACKGROUND
  • Barwell J, Anderson G, Hassan A, Rawlings I. The effects of early tourniquet release during total knee arthroplasty: a prospective randomized double-blind study. J Bone Joint Surg Br. 1997 Mar;79(2):265-8. doi: 10.1302/0301-620x.79b2.7191.

    PMID: 9119854BACKGROUND
  • Mittal R, Ko V, Adie S, Naylor J, Dave J, Dave C, Harris IA, Hackett D, Ngo D, Dietsch S. Tourniquet application only during cement fixation in total knee arthroplasty: a double-blind, randomized controlled trial. ANZ J Surg. 2012 Jun;82(6):428-33. doi: 10.1111/j.1445-2197.2012.06083.x. Epub 2012 May 10.

Study Officials

  • Jay Dave, MBBS

    Surgeon at Fairfield Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

July 6, 2010

First Posted

July 15, 2010

Study Start

November 1, 2008

Primary Completion

December 1, 2010

Study Completion

December 1, 2010

Last Updated

March 30, 2011

Record last verified: 2011-03

Locations