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Biodegradable material for bladder reconstruction.

T Agishi, M Nakazono, R J Kiraly

    Journal of Biomedical Materials Research
    |July 1, 1975
    PubMed
    Summary
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    Researchers developed a biodegradable material from treated bovine pericardium for temporary bladder regeneration in reconstructive surgery. The material successfully dissolved in dogs, supporting tissue regrowth without removal.

    Area of Science:

    • Biomaterials Science
    • Regenerative Medicine
    • Surgical Innovation

    Background:

    • Biodegradable materials are crucial for temporary scaffolding in tissue engineering.
    • Current methods for bladder reconstruction may require material removal.
    • Developing a resorbable material can enhance reconstructive surgery outcomes.

    Purpose of the Study:

    • To engineer a biodegradable material for temporary bladder reconstruction.
    • To assess the material's degradation and integration in vivo.
    • To evaluate its utility as a scaffold for bladder tissue regeneration.

    Main Methods:

    • Treatment of bovine pericardium with 70% acetic anhydride.
    • Subcutaneous implantation in dogs for degradation assessment.

    Related Experiment Videos

  • Bladder supplementation in dogs using the treated material.
  • Histological and functional evaluation of regenerated tissue.

    • Main Results:

    • Treated bovine pericardium degraded and dissolved within 4 weeks in subcutaneous canine models.
    • Canine bladder supplementation showed material dissolution at 4, 6, and 48 weeks post-implantation.
    • One dog experienced urinary leakage and was sacrificed early.
    • A remnant of material was observed in one dog at 10.5 months.
    • Functional assessments confirmed the material's utility for bladder supplementation.

    Conclusions:

    • 70% acetic anhydride treated bovine pericardium is a viable biodegradable material for temporary bladder reconstruction.
    • The material serves as an effective scaffold, promoting host tissue regeneration and self-resorbing.
    • Further research can optimize this material for clinical application in urological surgery.