Cost of post-operative intravenous iron therapy in total lower limb arthroplasty: a retrospective, matched cohort study.

In patients presenting with or without pre-operative anaemia, post-operative intravenous iron after total lower limb arthroplasty seems to be safe and is associated with reduced transfusion rates, without incremental costs. For anaemic patients, its efficacy could be increased by associating some other blood-saving method.