Suction drainage tube entrapment in total knee arthroplasty

Two cases of entrapment of suction drainage tubes between the femoral and tibial components were encountered after total knee arthroplasty. The first patient had an arthrotomy because it was believed that the tube was caught in a suture, and while attempting to remove it a portion remained trapped in the joint. At operation, flexion of the knee released the tubing. The second patient did not require reoperation because flexion of the knee released the tubing.