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| ID | Type | Description | Link |
|---|---|---|---|
| NW-Syria-TKA-Study-01 | Other Identifier | Idlib University |
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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.
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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Tranexamic Acid with Suction Drainage | Experimental | Patients 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. |
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| Tranexamic Acid without Drainage | Experimental | Patients 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. |
|
| Suction Drainage without Tranexamic Acid | Active Comparator | Patients 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. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Intra-articular Tranexamic Acid + Suction Drainage | Drug | 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. |
| Measure | Description | Time Frame |
|---|---|---|
| Total Blood Loss | Total blood loss calculated using changes in hemoglobin concentration and the Good et al. formula. | Within 72 hours after surgery |
| Measure | Description | Time Frame |
|---|---|---|
| Hidden Blood Loss | Hidden blood loss calculated as total blood loss minus drainage volume. | Within 72 hours after surgery |
| Drainage Volume | Total drainage collected through suction drains when applicable. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Mhmoud Adnan Al-Salamah | Idlib University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Faculity of Medicine | Idlib | Syria |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| Background | 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. | ||
| 42023914 | Background | 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. | |
| 35109837 |
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| ID | Term |
|---|---|
| D020370 | Osteoarthritis, Knee |
| ID | Term |
|---|---|
| D010003 | Osteoarthritis |
| D001168 | Arthritis |
| D007592 | Joint Diseases |
| D009140 | Musculoskeletal Diseases |
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| ID | Term |
|---|---|
| D014148 | Tranexamic Acid |
| D013396 | Suction |
| ID | Term |
|---|---|
| D003509 | Cyclohexanecarboxylic Acids |
| D000146 | Acids, Carbocyclic |
| D002264 | Carboxylic Acids |
| D009930 | Organic Chemicals |
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> 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.
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Not applicable. The study was conducted as an open-label trial with no blinded parties.
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| Intra-articular Tranexamic Acid | Drug | 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 Only | Device | Patients had a closed suction drain inserted intra-articularly and subcutaneously, activated two hours postoperatively. No tranexamic acid was administered. |
|
| 24 hours postoperatively |
| 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). | During hospital stay (up to 7 days postoperatively) |
| Postoperative Limb Swelling | Change in limb circumference at thigh, knee, and calf compared with preoperative baseline. | 1, 2, 4, and 6 weeks postoperatively |
| Wound-related Complications | Incidence of wound-related issues, including infection, hematoma, erythema, or superficial wound complications. | Within 6 weeks after surgery |
| Thromboembolic Events (DVT/PE) | Incidence of deep vein thrombosis (DVT) confirmed with Doppler ultrasonography and pulmonary embolism (PE) if suspected clinically. | Within 6 weeks after surgery |
| Postoperative Knee Range of Motion | Range of motion measured with a goniometer (flexion and extension). | 2 months postoperatively |
| Result |
| 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. |
| 36143903 | Result | 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. |
| 38138181 | Result | 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. |
| Result | 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 |
| 39548417 | Result | 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. |
| 38858713 | Result | 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. |
| Result | 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. |
| 40529153 | Result | 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. |
| D012216 |
| Rheumatic Diseases |
| D004322 |
| Drainage |
| D013514 | Surgical Procedures, Operative |