Conclusions
RA, VTE, TKA, bleeding
BLEEDING, COMPLICATION
Collectively, our results suggest that ASA, RA and dalteparin sodium are all effective on preventing VTE after TKA. In addition, compared with RA and dalteparin sodium, ASA significantly reduces post-treatment Hb loss, drainage volume, TBL, blood transfusion rate, and bleeding complication rate. Aspirin application may be a safe and effective modality for VTE prophylaxis following TKA in the future.