This phase II safety study aimed to investigate the bleeding side effect profile in patients treated with Rivaroxaban as a new agent for venous thromboembolism (VTE) prophylaxis following hip or knee arthroplasty. A retrospective study of complications was conducted in 88 consecutive patients undergoing hip and knee arthroplasty at one centre. Patients received chemical and/or mechanical VTE prophylaxis according to local guidelines. Data was collected from notes and evaluated using Fisher's exact test and t-Test. Significance was determined if p< =0.05. The primary end-point was local wound site oozing or bleeding. Secondary end-points were drop in haemoglobin, drain output and infection.Aims
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