Factors associated with an increased risk of postoperative blood transfusions in patients undergoing total hip arthroplasty – A mini-review

Introduction: Elective total hip arthroplasty is a common surgery performed around the world. Many patients undergoing elective total hip arthroplasty are elderly, with a large proportion being anaemic preoperatively. The aim of this mini-review is to discuss the numerous factors associated with blood transfusions after total hip arthroplasty, with particular emphasis on preoperative anaemia. Methods: This is a mini-review of the literature regarding factors associated with increased rates of postoperative blood transfusions and methods and strategies to reduce the incidence of postoperative blood transfusions after elective total hip arthroplasty. Results: Preoperative anaemia is a common condition in patients undergoing elective total hip arthroplasty. Preoperative anaemia, age, and increasing ASA score are all associated with increased rates of postoperative blood transfusions. Conclusion: Preoperative anaemia, increased age and ASA score are all associated statistically with increased rates of postoperative blood transfusions in patients undergoing elective total hip arthroplasty.