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Revision surgeries several years after the implantation of the prosthesis are unfavorable
from the patient’s point of view as they expose him to additional discomfort, to risk of complications
and are expensive. One of the factors responsible for the aseptic loosening of the prosthesis is the
gradual degradation of the cement material as a result of working under considerable loads, in an
aggressive environment of the human body. Contaminants present in the surgical field may signif-
icantly affect the durability of the bone cement and, consequently, of the entire bone-cement-pros-
thesis system. The paper presents the results of an analysis of selected mechanical properties of two
medium-viscosity bone cements DePuy CMW3 Gentamicin and Heraeus Palamed, for the samples
contaminated with saline and blood in the range of 1–10%. The results obtained for compressive
strength and modulus of elasticity were subjected to statistical analysis, which estimated the nature
of changes in these parameters depending on the amount and type of contamination and their sta-
tistical significance.
