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Background Tranexamic acid significantly reduces blood loss and transfusion requirements in arthroplasty patients. However, it is often avoided in patients who have had previous arterial and thromboembolic disease despite the absence of evidence of hazard in this group of patients. We examined the use of tranexamic acid in unselected hip and knee arthroplasty patients including those considered to be ‘high risk’. Methods A 2-year retrospective multicentre study was performed with patients who underwent hip or knee arthroplasty surgery. A blood management protocol included universal tranexamic acid use for all patients. Blood loss, transfusion volumes and complications were analysed. Results A total of 958 patients were included in the study, 130 patients were considered ‘high risk’ of thromboembolic complications and 828 patients were considered ‘low risk’. 879 patients received tranexamic acid with a significant reduction in blood loss (p