Osteoarthritis, Knee
Conditions
Keywords
Tranexamic acid, Peri-articular injection, Total knee arthroplasty, Blood loss, Osteoarthritis, Knee
Brief summary
This study evaluates the peri-articular tranexamic acid injection in total knee arthroplasty which is an alternative route of administration for blood loss reduction. Half of participants will receive intravenous tranexamic acid injection, while the other half will receive peri-articular tranexamic acid injection during total knee arthroplasty.
Detailed description
Intravenous tranexamic acid (IV TXA) is one of the most effective agents in use for reducing blood loss following total knee arthroplasty (TKA) but its safety regarding venous thromboembolic events (VTEs) remains in question. The direct, local application of TXA may reduce systemic toxicity whilst maintaining good or better bleeding control compared to IV TXA. The topical application of TXA via Hemovac drains has been reported previously with good results. However, there are no data on peri-articular TXA injections during TKA.
Interventions
750 mg of peri-articular TXA, prior to deflating the tourniquet and wound closure
750 mg of IV TXA, prior to deflating the tourniquet and wound closure
Sponsors
Study design
Eligibility
Inclusion criteria
* adult patients with osteoarthritis in need of a TKA
Exclusion criteria
* inflammatory arthritis * post-traumatic arthritis * a history of or current venous thromboembolic disease * any underlying disease of haemostasis * cirrhosis * chronic renal failure * patients on anticoagulants or strong antiplatelet drugs (e.g. warfarin, clopidogrel) * know allergy to TXA * defective color vision * preoperative hemoglobin \<10 g/dL * platelet count \< 140,000 /uL3
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The volume of postoperative blood loss in the drain | 48 hours after the operation |
| Changes from baseline hemoglobin concentrations | 48 hours after the operation |
| unit of blood transfusion | 48 hours after the operation |
Secondary
| Measure | Time frame |
|---|---|
| Knee diameter for swelling | At 24 and 48 hours after the operation |
| number of patient with venous thromboembolism | At 14 days after the operation |
Countries
Thailand