Orthopedic Procedures, Tranexamic Acid
Conditions
Brief summary
Verify the changes in coagulation system during total knee replacement surgery with tranexamic acid single bolus infusion.
Detailed description
The study was set to reveal changes in the coagulation and fibrinolytic systems during total knee surgery and especially during tourniquet placement, tourniquet removal and revascularization of ischemic limb, after tranexamic acid single bolus infusion, and at post operative day 1.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
* Osteoarthrosis * TKR operation elective * ASA I-III
Exclusion criteria
* TKR due to any reason but osteoarthrosis * known coagulation problems * platelets \< 100,000/DcL * Hb \< 12 g% * past thrombo-embolic event * treatment with aspiring during last week * treatment with NSAID's during last 48 hours * malignancy * known allergy to tranexamic acid * general anesthesia
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change in coagulation status during and after surgery compared to pre-surgery | During and after surgery compared to pre-surgery |
| Change in fibrinolytic activity during and after surgery compared to pre-surgery | During and after surgery compared to pre-surgery |