Primary fixation of cementless implants is achieved through an interference fit. Successful primary fixation of press-fit components, a prerequisite for their long-term stability, is achieved through periprosthetic stress and friction at the bone-implant interface. In computational studies of interference fits, the input value of the coefficient of friction (COF) significantly influences the assessment of the primary fixation of implants. The goal of the current study was to characterise the fri