Tranexamic acid reduces blood loss in primary total hip arthroplasty performed using the direct anterior approach: a one-center retrospective observational study.

"Declarations Ethics approval and consent to participateThis study has been approved by the ethics committee of the Affiliated Hospital of Xuzhou Medical University (no. 20170829). Competing interestsNo benefits in any form have been received or will be received from a commercial party related directly or indirectly to the subject of this article. The funding was used in the design of the study and collection, analysis, and interpretation of data and in writing the manuscript. Competing interests No benefits in any form have been received or will be received from a commercial party related directly or indirectly to the subject of this article. The funding was used in the design of the study and collection, analysis, and interpretation of data and in writing the manuscript."

"Funding This work was supported by the Jiangsu Provincial Medical Youth Talent (QNRC2016800), the Foundation of Jiangsu Province commission of Health and Family Planning (H2017081), and the Special Scientific Research Fund for Introducing Talents in Yijishan Hospital."