Repozytorium publikacji - Politechnika Gdańska

Spacer is a special implant used at the time of infection after endoprosthetic surgery. It consists of a metal core and bone cement coating with an antibiotic. In the human body spacers are exposed to degradation processes. This paper looks at the effect of corrosion on spacers. Electrochemical corrosion tests were performer on titanium pins with bone cement coating in two solutions: Ringer’s solution and artificial saliva. Bone cement with low and high viscosity was used. Corrosion current density and corrosion potential for titanium specimens and titanium specimens with bone cement coating were determined. Additionally, the potentiodynamic polarization curves for the most optimal coating was determined. The topography of the specimens were analyzed using SEM mi- croscopy. Changes on the coating due to electrochemical corrosion were observed. It has been found that high viscosity bone cement improves corrosion resistance of spacers, however, resulting in irreversible changes, i.e. etching the whole surface, pores and craters formation and local intense coating damage. It is assumed that corrosion degradation tests for spacers and bone cement should be continued, as this type of item is missing in the world literature.

Autorzy

• dr inż. Marcin Wekwejt link otwiera się w nowej karcie ,
• dr hab. inż. Beata Świeczko-Żurek link otwiera się w nowej karcie ,
• Agnieszka Suchodolska link otwiera się w nowej karcie ,
• Adam Zaborowski link otwiera się w nowej karcie ,
• dr hab. inż. Marek Szkodo link otwiera się w nowej karcie