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Osteoarthritis, KneeTNAKneeNCT07174895

Tranexamic Acid and Drain Use in Knee Arthroplasty

A study testing Intra-articular Tranexamic Acid + Suction Drainage, Intra-articular Tranexamic Acid and Suction Drainage Only in people with Osteoarthritis, Knee, run by Idlib University at 1 site in Syria.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This prospective randomized clinical study is designed to evaluate the effects of intra-articular tranexamic acid (TNA), with or without suction drainage, on perioperative blood management in patients undergoing total knee arthroplasty (TKA) for degenerative arthritis. Read more about this study

Who is it for?
Ages 50 to 90 years
Conditions the study is for
Osteoarthritis, Knee
What is being tested?
Intra-articular Tranexamic Acid + Suction Drainage, Intra-articular Tranexamic Acid and Suction Drainage Only
Could I receive a placebo?
No, everyone receives an active treatment
How many people
192 participants
Where
1 siteSyria
Study dates
6 Aug 2021to 1 Apr 2025
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 50 to 90 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients with degenerative knee arthritis
  • Scheduled for unilateral total knee arthroplasty

Who cannot join

  • Rheumatoid arthritis
  • Cardiovascular diseases (e.g., angina, myocardial infarction, arrhythmia, cerebrovascular events)
  • Coagulation disorders or thromboembolic disorders
  • Severe infections
  • Other serious health issues

Trial locations and contacts

1 site in 1 country.

Syria1 site
  • Faculity of Medicine

    Idlib

Other trials in Syria

About this study

Official title: Efficacy of Tranexamic Acid With/Without Drain in Knee Arthroplasty: A Study From Northwest Syria

This prospective randomized clinical study is designed to evaluate the effects of intra-articular tranexamic acid (TNA), with or without suction drainage, on perioperative blood management in patients undergoing total knee arthroplasty (TKA) for degenerative arthritis. A total of 192 patients will be randomly assigned to three groups: Group 1 will receive TNA with suction drainage, Group 2 will receive TNA only, and Group 3 will receive suction drainage only.

The primary outcomes will be total blood loss and transfusion requirements. Secondary outcomes will include hidden blood loss, drainage volume, postoperative limb swelling, wound-related complications, and knee range of motion. The study will help clarify whether suction drainage is necessary when intra-articular TNA is used during TKA.

Read the detailed description

Total knee arthroplasty (TKA) is commonly associated with significant perioperative blood loss, which may increase transfusion requirements and associated risks such as immunologic reactions, infection, and delayed recovery. Tranexamic acid (TNA) is an antifibrinolytic agent that inhibits fibrinolysis by blocking the activation of plasminogen. Suction drainage is frequently used to prevent hematoma formation, but its benefit in reducing transfusion needs remains controversial.

This single-center, prospective randomized study will enroll 192 patients undergoing unilateral TKA for degenerative arthritis. Participants will be assigned to three groups: (1) TNA with suction drainage, (2) TNA only, and (3) suction drainage only. TNA will be administered intra-articularly at a dose of 3 g in 100 mL normal saline after wound closure. When applied, suction drains will be activated two hours postoperatively.

The primary outcomes will be total blood loss and transfusion requirement. The secondary outcomes will include hidden blood loss, drainage volume, postoperative limb swelling, wound-related complications, and knee range of motion at two months. Statistical analysis will be conducted using ANOVA, repeated-measures t-tests, and chi-square tests, with significance set at p ≤ 0.05.

Being tested
Intra-articular Tranexamic Acid + Suction Drainage, Intra-articular Tranexamic Acid, Suction Drainage Only
Keywords
Arthroplasty, Replacement, Knee Tranexamic Acid Blood Loss, Surgical Drainage Perioperative Care Hemostasis, Surgical Randomized Controlled Trial
Medical subject headings
Osteoarthritis, Knee

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Intra-articular Tranexamic Acid + Suction DrainageDrug

    Patients received intra-articular injection of 3 g tranexamic acid in 100 mL normal saline after wound closure, along with a closed suction drain inserted intra-articularly and subcutaneously, activated two hours postoperatively.

  • Intra-articular Tranexamic AcidDrug

    Patients received intra-articular injection of 3 g tranexamic acid in 100 mL normal saline after wound closure. No suction drain was used.

  • Suction Drainage OnlyDevice

    Patients had a closed suction drain inserted intra-articularly and subcutaneously, activated two hours postoperatively. No tranexamic acid was administered.

Study groups in NCT07174895
Study groupRoleWhat they receive
Tranexamic Acid with Suction DrainageExperimentalPatients undergoing total knee arthroplasty received intra-articular injection of 3 g tranexamic acid diluted in 100 mL normal saline after wound closure. A closed suction drain was inserted intra-articularly and subcutaneously, activated two hours postoperatively.
Receives: Drug: Intra-articular Tranexamic Acid + Suction Drainage
Tranexamic Acid without DrainageExperimentalPatients undergoing total knee arthroplasty received intra-articular injection of 3 g tranexamic acid diluted in 100 mL normal saline after wound closure. No suction drain was used in this group.
Receives: Drug: Intra-articular Tranexamic Acid
Suction Drainage without Tranexamic AcidActive comparatorPatients undergoing total knee arthroplasty had a closed suction drain inserted intra-articularly and subcutaneously, activated two hours postoperatively. No tranexamic acid was administered in this group.
Receives: Device: Suction Drainage Only

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Total Blood Loss

    Total blood loss calculated using changes in hemoglobin concentration and the Good et al. formula.

    Measured: Within 72 hours after surgery

Secondary outcomes (7)
  1. Hidden Blood Loss

    Hidden blood loss calculated as total blood loss minus drainage volume.

    Measured: Within 72 hours after surgery

  2. Drainage Volume

    Total drainage collected through suction drains when applicable.

    Measured: 24 hours postoperatively

  3. Number of Blood Transfusions

    Number of patients receiving blood transfusions based on NIH Consensus criteria (Hb < 8.0 g/dL, or <10.0 g/dL with symptoms).

    Measured: During hospital stay (up to 7 days postoperatively)

  4. Postoperative Limb Swelling

    Change in limb circumference at thigh, knee, and calf compared with preoperative baseline.

    Measured: 1, 2, 4, and 6 weeks postoperatively

  5. Wound-related Complications

    Incidence of wound-related issues, including infection, hematoma, erythema, or superficial wound complications.

    Measured: Within 6 weeks after surgery

  6. Thromboembolic Events (DVT/PE)

    Incidence of deep vein thrombosis (DVT) confirmed with Doppler ultrasonography and pulmonary embolism (PE) if suspected clinically.

    Measured: Within 6 weeks after surgery

  7. Postoperative Knee Range of Motion

    Range of motion measured with a goniometer (flexion and extension).

    Measured: 2 months postoperatively

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted16 Sep 2025
  2. Study start6 Aug 2021
  3. Primary completion1 Apr 2025
  4. Study completion1 Apr 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
\> This is a prospective randomized clinical trial including 192 patients undergoing total knee arthroplasty. Participants were randomly assigned to one of three groups to assess the effects of intra-articular tranexamic acid and/or suction drainage on total and hidden blood loss, transfusion requirements, postoperative limb swelling, wound-related complications, and knee range of motion.
Masking
None (open label)
Enrolment
192 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07174895
Sponsor's protocol ID
T.A in Knee Arthroplasty
Other IDs
NW-Syria-TKA-Study-01
Acronym
TNAKnee
Status last verified
Sep 2025
First submitted
30 Aug 2025
Last updated
16 Sep 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Zhou C, Gao X, Han H, Wang L, Jiang H. The efficacy and safety of tranexamic acid in primary total knee arthroplasty: a systematic review and meta-analysis. J Orthop Surg Res. 2024;19(1):37. doi:10.1177/15563316231208716.

  • Gonzalez-Pola R, Tafoya-Olivos RO, Culebras-Almeida LA, Zermeno-Garcia G, Herrera-Lozano A. Minimizing bleeding and transfusion in single-stage bilateral hip and knee arthroplasty: A systematic review of current interventions. Rev Esp Cir Ortop Traumatol. 2025 Sep-Oct;69(5):532-543. doi: 10.1016/j.recot.2025.04.017. Epub 2025 May 7. English, Spanish.

    PubMed 42023914
  • Hishimura R, Onodera T, Ohkoshi Y, Okada K, Matsuoka M, Matsubara S, Iwasaki K, Kondo E, Iwasaki N. The effect of local injection of tranexamic acid into peri-articular tissue versus drain clamping in total knee arthroplasty: a randomized controlled trial. BMC Musculoskelet Disord. 2022 Feb 2;23(1):111. doi: 10.1186/s12891-022-05058-6.

    PubMed 35109837
  • Kim MK, Ko SH, Nam YC, Jeon YS, Kwon DG, Ryu DJ. Optimal Release Timing of Drain Clamping to Reduce Postoperative Bleeding after Total Knee Arthroplasty with Intraarticular Injection of Tranexamic Acid. Medicina (Kaunas). 2022 Sep 5;58(9):1226. doi: 10.3390/medicina58091226.

    PubMed 36143903
  • Liu CH, Chang CH, Chang YH, Shih HN, Hu CC. Topical Fibrin Sealant (Tisseel@) Does Not Provide a Synergic Blood-Conservation Effect with Tranexamic Acid in Total Knee Arthroplasty-A Prospective Randomized Controlled Trial. Medicina (Kaunas). 2023 Nov 26;59(12):2078. doi: 10.3390/medicina59122078.

    PubMed 38138181
  • Zhang W, Li N, Chen S, Tan Y, Al-Aidaros M, Chen L. The effects of hypotensive anesthesia and regional anesthesia on intraoperative blood loss in total knee arthroplasty. World J Emerg Surg. 2024;19(1):33. doi:10.1186/s13017-024-00554-7

  • Chaiyakit P, Kabkaew P, Hongku N, Wattanapreechanon P. Comparison of total blood loss between limited tourniquet use and conventional tourniquet use in total knee arthroplasty: a randomized controlled trial. BMC Musculoskelet Disord. 2024 Nov 15;25(1):918. doi: 10.1186/s12891-024-08058-w.

    PubMed 39548417
  • Liu Y, Ai J, Teng X, Huang Z, Wu H, Zhang Z, Wang W, Liu C, Zhang H. Risk factor analysis and establishment of a nomogram model to predict blood loss during total knee arthroplasty. BMC Musculoskelet Disord. 2024 Jun 10;25(1):459. doi: 10.1186/s12891-024-07570-3.

    PubMed 38858713
  • Shih CH, Hsu CL, Lin YC, Lee MS, Huang TL, Chang JK. The role of tranexamic acid and cryotherapy on acute postoperative pain and blood loss in total knee arthroplasty: a randomized controlled trial. J Orthop Surg Res. 2025;20(1):141. doi:10.1186/s13018-025-03744-6.

  • Liangliang L, Wei H, Tao Z, Pin P, Lianying H. Efficacy and safety of tranexamic acid in reducing hidden blood loss during unilateral total knee arthroplasty: a retrospective study. Front Med (Lausanne). 2025 Jun 3;12:1552893. doi: 10.3389/fmed.2025.1552893. eCollection 2025.

    PubMed 40529153

Questions about this trial

What is this clinical trial studying?

A study testing Intra-articular Tranexamic Acid + Suction Drainage, Intra-articular Tranexamic Acid and Suction Drainage Only in people with Osteoarthritis, Knee, run by Idlib University at 1 site in Syria.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 16 Sep 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Syria. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Total Blood Loss (time frame: Within 72 hours after surgery). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07174895, which also lists 10 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Sep 2025.

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