Comparison Of No Drain Or With A Drain After Unilateral Unicompartmental Knee Arthroplasty:A Prospective Randomized Controlled Trial

Objective: To prospectively compare of no drain or with drain after unilateral Unicompartmental knee arthroplasty(UKA).Methods: A ran-domized prospective study was conducted between June 2013 and October 2015.The study included 80 patients who were diveded into 2 groups:group A(n=40),which included patients with drain release,and group B(n=40),which included patients who without drain release.The true total blood loss was calculated depending on the height,body mass and pre—and postoperative Hct,and hidden blood loss Was gotten by subtracting the visible blood loss from totaI loss.The recovery after surgery,the correlative complications and transfusion amounts were compared and analyzed. Results: All 80 patients undergoing UKA were involved in the result analysis. The difference in the total blood loss and painless active full flexion was possible within 3 postoperative days and correlative complications did not reach statistical significance(P>0.05).1 Patient In the group of without a drain happened incision infection an 5 Patients happened exudation. painless active full flexion was possible 7postoperative days between drain-group and without drain-group Was significantly different(t =-0.265,P<0.05).Full weight bearing postoperative between drain-group and without drain-group Was significantly different(t=4.136,P<0.05). Conclusion: In patients having primary UKA, Using a drain release in UKA does not increase the amount of blood loss and transfusion rates; may reduce the incidence of postoperative complications, while making the knee function in patients with early recovery.