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NCT04923724

Tourniquet on Total Knee Arthroplasty

Completed NA Results posted Last updated 15 May 2025
What this trial tests

NA trial testing tourniquet in Arthritis Knee in 165 participants. Completed in 27 November 2024.

Timeline
1 November 2020
Primary endpoint
30 November 2023
27 November 2024

Quick facts

Lead sponsorWashington University School of Medicine
PhaseNA
StatusCompleted
Study typeINTERVENTIONAL
Allocationrandomized
Designparallel
Maskingsingle
Primary purposetreatment
Enrollment165
Start date1 November 2020
Primary completion30 November 2023
Estimated completion27 November 2024
Sites1 location across United States

Drugs / interventions tested

Conditions studied

Sponsor

Washington University School of Medicine

Who can join

18 and older, any sex, with Arthritis Knee. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Pain After TKA Measured by VAS Pain Survey on Focusmotion App Primary · 1 year

Effect of tourniquet use on pain after TKA, 0-10 scale with 10 being higher pain, VAS pain survey

GroupValue95% CI
Tourniquet During Surgery2.8± 1.5
No Tourniquet During Surgery2.6± 1.8
Functional Recovery Measured by Oxford Knee Score Scale Secondary · 1 year

Effect of tourniquet use on functional recovery after TKA. Score each question (item) from 0 to 4 with 0 being the worst outcome and 4 being the best outcome. The scores are then summed to produce an overall score running from 0 (worst possible) to 48 (best outcome).

GroupValue95% CI
Tourniquet During Surgery43.0± 6.28
No Tourniquet During Surgery41.37± 8.84
Functional Recovery Measured by Forgotten Joint Score Secondary · 1 year

Effect of tourniquet use on functional recovery after TKA. Scale measures how much patient is aware of their joint after surgery. a total of 12 questions are answered asking about awareness of the knee joint. Every question is scored 1 (never) to 5 (mostly) according to the selected response categories. Thus, the raw score ranges from 12 to 60. The raw score is linearly transformed to a 0-100 scale and then reversed to obtain the final score. Final score = 100 - ((sum(item01 to item12) - 12)/48\*100) 0:Represents the worst possible score, indicating the highest level of joint awareness and th

GroupValue95% CI
Tourniquet During Surgery68.4± 28.2
No Tourniquet During Surgery70.9± 77.4
Functional Recovery Measured by Normal Knee Survey Secondary · 1 year

Effect of tourniquet use on functional recovery after TKA measured by a score of 0-100, 100 being knee feels normal, 0 means knee does not feel normal

GroupValue95% CI
Tourniquet During Surgery79.3± 90
No Tourniquet During Surgery81.5± 20.1
Hours of Sleep Per Night Postoperatively Secondary · 3 months

Investigate sleep quality in post-operative period after TKA using fitbit tracker average hours of sleep at night

GroupValue95% CI
Tourniquet During Surgery5.41± 2.23
No Tourniquet During Surgery6.47± 1.63
Total Blood Loss Secondary · 1 day

effect of tourniquet use on total calculated blood loss after TKA. this is calculated by change in hemoglobin in g/dL from preop to periop.

GroupValue95% CI
Tourniquet During Surgery13.9± 1.4
No Tourniquet During Surgery11.5± 1.3

Adverse events — posted to ClinicalTrials.gov

Time frame: Ae's collected up to 1 year.. Reporting threshold: 0%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

Tourniquet During Surgery
Serious: 1/57 (2%)
Deaths: 1/57
No Tourniquet During Surgery
Serious: 0/58 (0%)
Deaths: 0/58

Serious adverse events (1 terms)

ReactionSystemTourniquet During SurgeryNo Tourniquet During Surgery
urinary retention lower abdominal and back painHepatobiliary disorders

Most-reported serious reactions: urinary retention lower abdominal and back pain.

Data from ClinicalTrials.gov NCT04923724 adverse events section.

Sponsor's own description

The purpose of this study is determine the effect on novel pressure-regulating tourniquet use on pain, functional recovery, sleep and total blood loss following total knee arthroplasty.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

Verify or expand the search:

Other trials of tourniquet

Trials testing the same drug.

Other recruiting trials for Arthritis Knee

Currently open trials in the same condition.

Other Washington University School of Medicine trials

Trials by the same sponsor.

Verify against primary sources

Data sources for this page

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04923724.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing