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Orthopedic hip surgery is associated with considerable blood loss and high rates of perioperative transfusion. 1) A recent meta-analysis of 19 studies showed that 24% of patients undergoing total hip replacement or total knee replacement and 44% of those with hip fracture had preoperative anemia. It has also been reported that more than 50% of such patients became anemic after surgery due to intraoperative blood loss. 2,3) Allogenic red blood cell transfusion is frequently used to treat acute postoperative anemia, and 20%-50% of these patients receive at least one unit of red blood cells. In this respect, the three-pillar concept of patient blood management was developed to reduce the risk of transfusion. n addition to perioperative blood loss, iron homeostasis can result in postoperative anemia through a condition called functional iron deficiency, which is caused
Kim et al. (Mon,) studied this question.