#$%^&*AU2015202926B220170713.pdf#####H: txb Interwoven NRPortbl DCC TXB 7855197_1.docx - 28/5/15 ABSTRACT The present invention relates the use of a substance selected from the group consisting of anti-inflammatory substances, anti-microbial substances, anti-tumor substances, anti-viral substances, and/or bone stimulating substances as an additive to an UHMWPE material for the production of a medical implant for imparting benign body response properties to the medical implant.