Fig. 1From: Peri-articular tranexamic acid injection in total knee arthroplasty: a randomized controlled trialPeri-articular tranexamic acid injection (right knee) at a the medial gutter and medial capsule, b the lateral gutter and lateral capsule and c around the quadriceps muscle. d One drain (Privac®; Primed Halberstadt Medizintechnik GmbH, Halberstadt, Germany) was positioned at the lateral gutterBack to article page