Are the materials of the REX Cement Stop biocompatible?
Yes, both materials (the gelatin of the bushings and the PMMA of the locking mechanism) are widely accepted as biocompatible implant material. They are both accepted to be non-toxic and non pyrogenetic. PMMA is also used in bone cement and the PMMA parts of the REX Cement Stop bond to bone cement. The gelatin used in the bushings is fully degradable and will be absorbed within 2 weeks time.
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