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      Tissue biocompatibility of kevlar aramid fibers and polymethylmethacrylate, composites in rabbits.

      Journal of biomedical materials research

      Acrylic Resins, Animals, Biocompatible Materials, Composite Resins, Female, Muscles, Polymers, Rabbits, Time Factors

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          Abstract

          Two groups of female NZW rabbits were implanted in the paravertebral muscles with aramid (du Pont Kevlar aramid 49) fibers and aramid-polymethylmethacrylate (PMMA) composites for 14 and 28 days. Rabbits were killed at these times periods, necropsies performed, sites scored for gross tissue response, and tissue specimens containing the implants removed for histopathological evaluation. A mild fibrous tissue reaction was observed around all implants containing aramid fiber similar to that observed around the silicone control implant. Some foreign body giant cells were also present adjacent to the fibers. An intense necrotic inflammatory reaction was present around the positive control material (PVC Y-78). The tissue response to implantation of aramid fiber and fiber-PMMA composites indicates that aramid is a biocompatible material.

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          Journal
          3558440
          10.1002/jbm.820210110

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