Clinical trial NCT05919615: Use of Tranexamic Acid in the Total Knee Arthroplasty.
Official title: Evaluation of Efficacy and Safety of Perioperative Tranexamic Acid During Primary Total Knee Arthroplasty: A Randomized, Clinical Trial
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Knee Osteoarthritis
Blood Loss
Blood Transfusion
Keywords: tranexamic acid
total knee arthroplasty
blood loss
complication
Lead sponsor: Damascus University
Sponsor class: OTHER
First posted: 2023-06-26
Enrollment: 100
Sex: ALL
Minimum age (years): 40
Maximum age (years): 70
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: Tranexamic acid is a medication used to treat or prevent excessive blood loss during surgery. Previous studies have shown tranexamic acid (TXA) reduces blood loss and post-operative blood transfusion rate without significant complications. In addition, many meta-analyses have confirmed these results. This study also aims to determine how safe and effective tranexamic acid treatment is for different patients undergoing primary total knee arthroplasty.

Detailed description: Tranexamic acid (TXA) is used to control both intraoperative (IO) and postoperative (PO) bleeding during various surgical procedures. Moreover, TXA was found to indirectly reduce post-surgery infection rates and decrease hemorrhage-related mortality in trauma patients. This study aims to determine how safe and effective tranexamic acid treatment is for patients undergoing primary total knee arthroplasty. The study is a prospective, randomized, triple-blinded, placebo-controlled study. Ninety participants were enrolled between July 2021 and September 2022 and followed up with every patient for six months.

The study was done in Damascus, Syria. Participants were randomly assigned following simple randomization procedures (computerized random numbers) to 1 of 2 groups. The allocation was put into concealed envelopes independent of the surgeon and the author, and the randomization was performed by a research fellow who was not involved in patient care. Participants who went unilateral primary TKA and did not use TXA, just IV normal saline (0.9% sodium chloride), formed the control group. In contrast, the intervention group comprised participants who went primary unilateral TKA and used two-dose intravenous tranexamic acid that was applied as follows: 10mg/kg of Tranexamic Acid in 100 Milliliters（ml) normal saline (0.9% sodium chloride), the first dose 15 minutes before the tourniquet deflation and the second dose at 180 minutes after the first dosage.

Eligibility criteria: Inclusion Criteria:

* Patients with primary knee osteoarthrosis who underwent unilateral primary TKA

Exclusion Criteria:

* Known allergic reaction to tranexamic acid
* Secondary arthritis (ex., Rheumatic arthritis, traumatic arthritis, septic arthritis)
* BMI less than 20 and more than 40.
* Patients having vascular or hematologic disease.
* Patients who were taking anti-coagulant medicine and couldn't stop it.
* Patients having acute or chronic renal failure.
* Patients classified as the AAA as grade four or five.
* Patients with intra-operative complications such as intra-operative fractures or vascular injuries.
* Post-traumatic and secondary knee arthritis patients.
* Revisions and complex primary cases.
* Patients with an active infection or a history of lower limp infection.

Primary outcomes:
measure: Total Blood Loss（TBL）
timeFrame: calculated by an equation at the 72h postoperative
measure: intra-operative blood loss
timeFrame: measured during surgery time (From the time of the surgical incision at the beginning of the operation until the time of wound closure at the end of the operation), Which equals about an hour
measure: post-operative blood loss
timeFrame: measured once 2 days after surgery
measure: hidden blood loss
timeFrame: measured once 3 days after surgery
Secondary outcomes:
measure: Transfusion rates
timeFrame: from the day of surgery to the day of discharge,an expected average of 3 days
measure: perioperative complication
timeFrame: assesed if happened within month interval untill 6 months after surgery
Other outcomes:
Locations:
city: Damascus
country: Syrian Arab Republic
facility: Damascus university
Study officials:
affiliation: Damascus University
name: Jaber Ibrahim, M.D, Ph.D
role: STUDY_DIRECTOR
References:
citation: Alshryda S, Sarda P, Sukeik M, Nargol A, Blenkinsopp J, Mason JM. Tranexamic acid in total knee replacement: a systematic review and meta-analysis. J Bone Joint Surg Br. 2011 Dec;93(12):1577-85. doi: 10.1302/0301-620X.93B12.26989.
citation: Wang H, Shen B, Zeng Y. Comparison of topical versus intravenous tranexamic acid in primary total knee arthroplasty: a meta-analysis of randomized controlled and prospective cohort trials. Knee. 2014 Dec;21(6):987-93. doi: 10.1016/j.knee.2014.09.010. Epub 2014 Oct 23.
citation: Lin C, Qi Y, Jie L, Li HB, Zhao XC, Qin L, Jiang XQ, Zhang ZH, Ma L. Is combined topical with intravenous tranexamic acid superior than topical, intravenous tranexamic acid alone and control groups for blood loss controlling after total knee arthroplasty: A meta-analysis. Medicine (Baltimore). 2016 Dec;95(51):e5344. doi: 10.1097/MD.0000000000005344.
citation: Cankaya D, Dasar U, Satilmis AB, Basaran SH, Akkaya M, Bozkurt M. The combined use of oral and topical tranexamic acid is a safe, efficient and low-cost method in reducing blood loss and transfusion rates in total knee arthroplasty. J Orthop Surg (Hong Kong). 2017 Jan;25(1):2309499016684725. doi: 10.1177/2309499016684725.
citation: Benoni G, Lethagen S, Fredin H. The effect of tranexamic acid on local and plasma fibrinolysis during total knee arthroplasty. Thromb Res. 1997 Feb 1;85(3):195-206. doi: 10.1016/s0049-3848(97)00004-2.
citation: Charoencholvanich K, Siriwattanasakul P. Tranexamic acid reduces blood loss and blood transfusion after TKA: a prospective randomized controlled trial. Clin Orthop Relat Res. 2011 Oct;469(10):2874-80. doi: 10.1007/s11999-011-1874-2. Epub 2011 Apr 22.
citation: Nielsen CS, Jans O, Orsnes T, Foss NB, Troelsen A, Husted H. Combined Intra-Articular and Intravenous Tranexamic Acid Reduces Blood Loss in Total Knee Arthroplasty: A Randomized, Double-Blind, Placebo-Controlled Trial. J Bone Joint Surg Am. 2016 May 18;98(10):835-41. doi: 10.2106/JBJS.15.00810.
citation: Berman AT, Geissele AE, Bosacco SJ. Blood loss with total knee arthroplasty. Clin Orthop Relat Res. 1988 Sep;(234):137-8.
citation: Gross JB. Estimating allowable blood loss: corrected for dilution. Anesthesiology. 1983 Mar;58(3):277-80. doi: 10.1097/00000542-198303000-00016. No abstract available.
citation: Marra F, Rosso F, Bruzzone M, Bonasia DE, Dettoni F, Rossi R. Use of tranexamic acid in total knee arthroplasty. Joints. 2017 Feb 7;4(4):202-213. doi: 10.11138/jts/2016.4.4.202. eCollection 2016 Oct-Dec.
citation: Roy SP, Tanki UF, Dutta A, Jain SK, Nagi ON. Efficacy of intra-articular tranexamic acid in blood loss reduction following primary unilateral total knee arthroplasty. Knee Surg Sports Traumatol Arthrosc. 2012 Dec;20(12):2494-501. doi: 10.1007/s00167-012-1942-5. Epub 2012 Mar 15.