NCT01333969

Brief Summary

The application of a tourniquet for 5 minutes and subsequent reperfusion before actual inflation of the tourniquet for total knee arthroplasty (ischemic preconditioning) decreases the level of local inflammation and therefore postoperative pain in response to reperfusion of the ischemic extremity.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Apr 2011

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2011

Completed
10 days until next milestone

First Submitted

Initial submission to the registry

April 11, 2011

Completed
1 day until next milestone

First Posted

Study publicly available on registry

April 12, 2011

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2012

Completed
12.5 years until next milestone

Results Posted

Study results publicly available

September 23, 2024

Completed
Last Updated

December 27, 2024

Status Verified

May 1, 2024

Enrollment Period

1 year

First QC Date

April 11, 2011

Results QC Date

September 17, 2018

Last Update Submit

December 23, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Postoperative Pain at Rest and Exercise as Assessed by Visual Analogue Scale (VAS) Scores at 48h After Surgery

    Visual Analogue Scale (VAS) are used to measure the intensity of pain. The total scale ranged from 0 (no pain) to 10 (excruciating pain). The average value at POD 48hours was reported for each arm/group.

    48hrs after surgery

Secondary Outcomes (8)

  • Overall Epidural Volume

    At 48hrs after surgery

  • Muscle Oxygenation Over Calf at 48h After Surgery

    At 48 hrs after surgery

  • Levels of Interleukin 6 (IL6) in Drainage Fluid at 24hr Postoperatively

    At 24 hours postoperatively

  • Periarticular Circumference of the Knee at 6h, 24h, and 48h

    measured at 6 hours, 24 hours, and 48 hours

  • Hospital Length of Stay

    Up to discharge date

  • +3 more secondary outcomes

Study Arms (2)

Ishcemic Preconditioning

ACTIVE COMPARATOR

In the study group, the patients' operative limb will be preconditioned by inflating the tourniquet for 5 minutes, followed by deflation and a 5-minute reperfusion period. Subsequently, the tourniquet will be inflated for the entire length of the operation (before skin incision to after insertion of the final components).

Procedure: Ischemic Preconditioning

Control

NO INTERVENTION

In the control group, the tourniquet will be used for the entire length of the operation without a preconditioning phase.

Interventions

In the study group, the patients' operative limb will be preconditioned by inflating the tourniquet for 5 minutes, followed by deflation and a 5-minute reperfusion period. Subsequently, the tourniquet will be inflated for the entire length of the operation (before skin incision to after insertion of the final components). In the control group, the tourniquet will be used for the entire length of the operation without a preconditioning phase.

Ishcemic Preconditioning

Eligibility Criteria

Age18 Years - 99 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • All patients undergoing primary total knee arthroplasty

You may not qualify if:

  • Patients who chronically use narcotics (\<1 month).
  • Patients with contraindications (severe peripheral vascular disease, presence of femoral-popliteal bypass grafts, etc.) or no plan for tourniquet use as determined by the clinical care team.
  • Patients who are on corticosteroids prior to their surgery

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital for Special Surgery

New York, New York, 10021, United States

Location

Related Publications (1)

  • Memtsoudis SG, Stundner O, Yoo D, Gonzalez Della Valle A, Boettner F, Bombardieri AM, Jules-Elysee K, Poultsides L, Ma Y, Sculco TP. Does limb preconditioning reduce pain after total knee arthroplasty? A randomized, double-blind study. Clin Orthop Relat Res. 2014 May;472(5):1467-74. doi: 10.1007/s11999-013-3106-4.

MeSH Terms

Conditions

Pain, Postoperative

Interventions

Ischemic Preconditioning

Condition Hierarchy (Ancestors)

Postoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and SymptomsPainNeurologic ManifestationsSigns and Symptoms

Intervention Hierarchy (Ancestors)

TherapeuticsInvestigative Techniques

Results Point of Contact

Title
Dr. Stavros Memtsoudis
Organization
Hospital for Special Surgery

Study Officials

  • Stavros G. Memtsoudis, MD, PhD

    Hospital for Special Surgery, New York

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 11, 2011

First Posted

April 12, 2011

Study Start

April 1, 2011

Primary Completion

April 1, 2012

Study Completion

April 1, 2012

Last Updated

December 27, 2024

Results First Posted

September 23, 2024

Record last verified: 2024-05

Locations