Tranexamic Acid and Drain Use in Knee Arthroplasty

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.

Patients received intra-articular injection of 3 g tranexamic acid in 100 mL normal saline after wound closure. No suction drain was used.

Patients had a closed suction drain inserted intra-articularly and subcutaneously, activated two hours postoperatively. No tranexamic acid was administered.