#$%^&*AU2009240850B220131024.pdf#####Abstract Polymethylmethacrylate bone cement composition for controlled hyperthermia treatment 5 The invention relates to a polymethylmethacrylate bone cement composition that contains polymethylmethacrylate, radio-opaquer, methylmethacrylate and/or alkylmethacrylates, and an initiator system and comprises, in addition, ferromagnetic and/or superparamagnetic particles of a particle size of up to maximally 500 pm - which allows it to be heated by alternating magnetic fields - and further contains at least one to biodegradable or biocompatible crystalline substance having a melting point in the range of 43-46*C. The cured cement can be used for local over-heating (hyperthermia) therapy in the absence of undesired temperature peaks.
