Thermal manifestations and nanoindentation of bone cements for orthopaedic surgery

Abstract

Improving of bone cements properties is possible by research of variables influencing exothermal behaviour and mechanical properties. Paper deals with exothermal behaviour experimental evaluation of bone cements used for medical purposes. Specimens were prepared by a conventional manual mixing technique.The work addresses primary risk factor associated with application of bone cement to femoral canal. Different size samples of bone cement has been created with diameter d = 2; 5;12,5 mm fixed in dentacryl. As an experimental material, Palacos R+G high viscosity, radiopaque bone cement containing Gentamicin and Radiopaque bone cement Antibiotic Simplex with Tobramycin, was used. Thermal effect during exothermic polymerisation was measured with period 1 minute. Evaluated factors were mass and thickness of bone cement. Significant influence of bone cement mass on temperature has been found.

The current approach to research and design of the artificial hip prosthesis: a review

“…Since the main function of the long bones of the lower body is providing support for the transfer of loads, it is reasonable to expect that the initial materials introduced to replace the joints, such as artificial hips, were metals. Of course, their stiffness and strength considerably exceed bone parameters, as shown in Table 1 [34,39,[46][47][48]. Three commonly used alloys in making hip implants are stainless steels, titanium alloys and Co-Cr alloys.…”