Abstract
Perioperative blood transfusions are common in total hip arthroplasty because of preoperative anemia and perioperative blood loss. Perioperative anemia and the need for allogeneic blood transfusion are related with increased morbidity. To reduce perioperative allogeneic blood transfusion, keeping the preoperative hemoglobin level above 12.0 g/dL is important in orthopedic patients. By using the anti-fibrinolytic agent or perioperative cell salvage, reduce intraoperative blood loss is very important for the reduction of perioperative blood loss. As a transfusion trigger, low hemoglobin is another important target to reduce the transfusion rate. Because blood management is closely connected with prognosis, it has become a new challenge in orthopedic surgery.