Recently, the inherent risks of blood, along with the continued rise in blood costs, activated the development and use of alternatives to blood transfusion. Fibrinogen concentrate may limit postoperative bleeding and lead to a significant reduction in allogeneic blood products transfusions in cardiac surgery and craniosynostosis surgery. However, the effect of fibrinogen concentrate in scoliosis surgery is still uncertain. Therefore, a prospective, randomized trial is designed to evaluate if the infusion of fibrinogen concentrate may reduce allogeneic blood transfusion in patients undergoing scoliosis surgery.