Abstract
Hemophilia A is a rare genetic disorder involving a deficiency of clotting factor VIII. Coagulation factor replacement therapy has prolonged the life expectancy of patients with hemophilia, but recurrent hemarthrosis of major joints is often a common occurrence. Therefore, orthopaedic adult reconstructive surgeons increasingly encounter hemophilic arthropathy in young adults and consider treating with total joint arthroplasty. In this report, the authors describe a patient with hemophilia A and severe knee osteoarthritis, who was subsequently treated with primary total knee arthroplasty. This rare case is an opportunity to explore a variety of unique clinical scenarios specific to patients with hemophilia, including the maintenance of optimal factor VIII levels through clotting factor infusions and prevention of a venous thromboembolic event.