Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (31): 4944-4948.doi: 10.3969/j.issn.2095-4344.2015.31.005

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Tranexamic acid reduces blood loss in total knee arthroplasty: effectiveness and safety

Cao Wan-jun, Zhu Shao-ling, Liu Xian-dong, Tang Cheng-jie, Zheng Jin-wen, Chen Xing-yu, Liu Ying, Xiao Peng   

  1. Department of Lower Limb, Sichuan Orthopeadic Hospital, Chengdu 610041, Sichuan Province, China
  • Online:2015-07-23 Published:2015-07-23
  • About author:Cao Wan-jun, Associate chief physician, Department of Lower Limb, Sichuan Orthopeadic Hospital, Chengdu 610041, Sichuan Province, China

Abstract:

BACKGROUND: Tranexamic acid is a synthetic anti-fibrinolytic drug, and can effectively control blood loss after total knee arthroplasty through vein. 
OBJECTIVE: To evaluate the effectiveness and safety of tranexamic acid in reducing blood loss after primary unilateral total knee arthroplasty.
METHODS: From 2014 to 2015, 100 patients from the Department of Lower Limb, Sichuan Orthopaedic Hospital underwent primary unilateral total knee arthroplasty, and randomly divided into test group which used tranexamic acid and control group which used tranexamic acid, with 50 cases in each group. 1 g tranexamic acid was infused into the vein at 10 minutes before total knee arthroplasty in the test group, but tranexamic acid was not given in the control group.
RESULTS AND CONCLUSION: The amount of total blood loss, postoperative wound drainage in 24 hours, and the amount of blood transfusion were significantly less in the test group than in the control group (P < 0.05). No significant differences in intraoperative blood loss and the number of patients receiving blood transfusion were found between the test and control groups. No significant difference in preoperative hemoglobin levels was detected before surgery, but hemoglobin levels were decreased after surgery between the two groups. Postoperative hemoglobin levels were apparently higher in the test group than in the control group after surgery. At 24 hours after surgery, no significant difference in coagulation was detectable between the two groups. At 6 days, double lower limb vein color Doppler ultrasound examination did not reveal deep vein thrombosis in both groups. These findings verify that treatment with tranexamic acid in the vein before primary unilateral total knee arthroplasty can evidently diminish the amount of perioperative blood loss and blood transfusion, reduce the risk  and cost of blood transfusion, which is good for rehabilitation and does not increase the risk of deep vein thrombosis. 

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

Key words: Tranexamic Acid, Arthroplasty, Replacement, Knee, Venous Thrombosis, Blood Transfusion

CLC Number: