• Sattar Alshryda, James M Mason, Praveen Sarda, T Lou, Martin Stanley, Junjie Wu, and Anthony Unsworth.
• Departments of Trauma and Orthopaedics, Central Manchester University Hospitals, Oxford Road, Manchester, M13 9WL, Lancashire, UK, Sattar26@doctors.org.uk.
• J Orthop Traumatol. 2015 Mar 1; 16 (1): 27-34.

BackgroundTranexamic acid (TXA) has been successfully used to reduce bleeding in joint replacement. Recently local TXA has been advocated to reduce blood loss in total knee or hip replacement; however, this raised concerns about potential adverse effects of TXA upon the artificial joint replacement.Materials And MethodsIn this biomechanical study we compared the effects of TXA and saline upon the following biomechanical properties of artificial joint materials-(1) tensile properties (ultimate strength, stiffness and Young's modulus), (2) the wear rate using a multi-directional pin-on-plate machine, and (3) the surface topography of pins and plates before and after wear rate testing.ResultsThere were no significant differences in tensile strength, wear rates or surface topography of either ultra-high-molecular-weight polyethylene pins or cobalt chromium molybdenum metal plates between specimens soaked in TXA and specimens soaked in saline.ConclusionBiomechanical testing shows that there are no biomechanical adverse affects on the properties of common artificial joint materials from using topical TXA.Level Of EvidenceV.

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