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Experimental osteotomy fixed with a composite resin

J Vainio, P Rokkanen

    Archives of Orthopaedic and Traumatic Surgery. Archiv Fur Orthopadische Und Unfall-Chirurgie
    |August 30, 1978
    PubMed
    Summary
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    Bis-GMA composite resin shows promise for bone fracture fixation, outperforming untreated controls in rat tibial osteotomies. While intramedullary nailing yielded superior results, bis-GMA offers a viable alternative for osteosynthesis.

    Area of Science:

    • Biomaterials Science
    • Orthopedic Surgery
    • Dental Materials

    Background:

    • Composite resins, particularly bis-GMA, are explored for orthopedic applications due to claimed superior properties over bone cements.
    • Evaluating novel biomaterials for bone fracture fixation is crucial for improving patient outcomes.

    Purpose of the Study:

    • To assess the efficacy of bis-GMA composite resin in fixing experimental tibial osteotomies in rats.
    • To compare bis-GMA fixation with traditional intramedullary nailing and unfixed controls.

    Main Methods:

    • Tibial osteotomies were created in 84 rats and fixed with bis-GMA composite resin.
    • A control group of 28 rats underwent intramedullary nailing, and another 28 rats had unfixed osteotomies.
    • Radiographic, histologic, microradiographic, and oxytetracycline fluorescence studies were conducted at multiple time points up to 24 weeks.

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    Main Results:

    • Intramedullary nailing demonstrated the most favorable osteotomy healing outcomes.
    • Bis-GMA composite resin fixation resulted in more favorable healing compared to the untreated control group.
    • Bone exhibited good tolerance to the bis-GMA material throughout the study period.

    Conclusions:

    • Bis-GMA composite resin is suitable for osteotomy fixation.
    • The tested bis-GMA material is well-tolerated by bone tissue.
    • Further research may explore bis-GMA's potential in clinical orthopedic settings.