Many Orthopaedic bone cements have little intrinsic adhesive properties, but rely on a close mechanical interlock between the irregular bone surface and the prosthesis. Consequently, long-term chemical and physical characteristics are very important. But another crucial aspect is the polymer’s handling characteristics during mixing, working, and curing.
Various additives such as antibiotics, radio-opaque agents, initiators, accelerators, inhibitors and even additives to stimulate bone growth such as hydroxyapatite, affect the handling and mechanical properties of orthopaedic bone cements.
Our ability to exercise tight control over molecular weight, residual, monomer, moisture content and particle size allows us to modify handling characteristics like the viscosity profile of the bone cement as well as the injection and curing times. The polymer composition also facilitates performance properties such as mechanical properties or even irradiation shielding.