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  • Title: Controversies in Fracture Healing: Early Versus Late Dynamization.
    Author: Schultz BJ, Koval K, Salehi PP, Gardner MJ, Cerynik DL.
    Journal: Orthopedics; 2020 May 01; 43(3):e125-e133. PubMed ID: 32077970.
    Abstract:
    Dynamization of fracture fixation constructs provides early rigidity for primary bone healing and late motion for secondary healing. A review of laboratory, animal, and clinical studies investigating the impact, and optimal timing, of dynamization is limited by lack of standardization across studies. However, in animal models, dynamization improves histologic and biomechanical properties compared with statically rigid or flexible controls. In animals, dynamization at 3 to 4 weeks showed improved histologic results. In clinical studies, it showed faster, stronger, and stiffer bone healing. Clinical success dynamizing external fixators and intramedullary nails suggests a role for late dynamization in other fixation types, such as bridge plating. [Orthopedics. 2020;43(3):e125-e133.].
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