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[The change of physical properties of plastics (polyoxymethylenecopolymer, polyethyleneterephthalate, polyethylene, polytetrafluorethylene) after animal implantation and autoclavation (author's transl)].

D Wolter·C Burri·L Kinzl·A Müller
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Abstract

The change of physical properties of plastics (polyoxymethylene-copolymer, polyethyleneterephthalate, polyethylene, polytetrafluorethylene) and the bio-compatibility of these materials were examined by implantation in the backmuscle of 6-month-old male rabbits for 4 and 12 weeks and after autoclavation. We have found out, that after implantation and autoclavation polyethylene-terephthalate demonstrates a strong diminution of the visco-elastic qualities. Polyethylene and polytetrafluorethylene were not changed by these treatments. After an implantation of 12 weeks and an autoclavation of four times the visco-elastic properties of polyoxymethylene-copolymer were only slightly diminished by 10 to 15%. The histological investigation of the surrounding tissue demonstrated a very good bio-compatibility of polyethylene. After an implantation of 4 weeks polyoxymethylene-copolymer, polyethyleneterephthalate and polytetrafluorethylene produced a comparable foreign body reaction, which, however, was evidently diminished after an implantation of 12 weeks.

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AnimalsBiocompatible MaterialsChemical PhenomenaChemistry, PhysicalElasticityForeign BodiesMaleMusclesPolyethylene TerephthalatesPolyethylenesPolymersPolytetrafluoroethyleneRabbitsTime FactorsViscosityJournal Article

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D Wolter, C Burri, L Kinzl, A Müller. 1976-11-18. [The change of physical properties of plastics (polyoxymethylenecopolymer, polyethyleneterephthalate, polyethylene, polytetrafluorethylene) after animal implantation and autoclavation (author's transl)].. https://doi.org/10.1007/bf00418906

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