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Related Experiment Videos

Bioprosthesis in hand surgery.

D J Smith, C S Jones, M Hull

    The Journal of Surgical Research
    |October 1, 1986
    PubMed
    Summary
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    Glutaraldehyde-treated porcine heart valves inspired new biomaterials for hand surgery. Treated tendon and pericardium showed promising integration and strength in animal models, suggesting potential for reconstructive surgery.

    Area of Science:

    • Biomaterials Science
    • Orthopedic Surgery
    • Tissue Engineering

    Background:

    • The term bioprosthesis was coined in 1965 for glutaraldehyde-treated porcine heart valves.
    • These valves function well without host incorporation, prompting interest in similar materials for hand surgery.
    • Glutaraldehyde treatment preserves tissues, creating potential for surgical implants.

    Purpose of the Study:

    • To investigate the effects of glutaraldehyde treatment on tendon and pericardium for hand surgery applications.
    • To evaluate the biocompatibility and mechanical properties of glutaraldehyde-treated grafts in animal models.

    Main Methods:

    • Chickens underwent glutaraldehyde-treated tendon grafting (56 experiments).
    • Mechanical testing assessed implant system strength and failure sites over time.

    Related Experiment Videos

  • Mammalian pericardium was glutaraldehyde-treated and tested in rabbit models for feasibility.

    • Main Results:

    • Glutaraldehyde-treated tendon grafts showed no acute rejection in chickens.
    • Histological analysis revealed proximal fibrous ingrowth by 8 weeks and distal ingrowth by 12 weeks.
    • Mechanical testing demonstrated increasing load at failure, with shifts in failure sites from distal to proximal attachments over 24 weeks.

    Conclusions:

    • Glutaraldehyde treatment yields functional tendon grafts with progressive host integration.
    • Treated pericardium shows potential as an interpositional substance in hand surgery.
    • These preserved tissues represent promising biomaterials for reconstructive procedures in hand surgery.