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  • Title: Hypertrophic nonunion management with distraction osteogenesis: a scoping review of the literature.
    Author: Rouse BJ, Sheridan GA, Page BJ, Fragomen AT, Rozbruch SR.
    Journal: OTA Int; 2024 Dec; 7(4):e342. PubMed ID: 39301533.
    Abstract:
    INTRODUCTION: Traditionally, stiff hypertrophic nonunions have been managed with open preparation of the nonunion site, which is then secured with internal fixation. Alternative surgical options are available including distraction osteogenesis with an external fixator. There is currently a limited amount of literature pertaining to the use of distraction osteogenesis in the management of hypertrophic nonunion. The aim of this systematic review was to collate and assess the effectiveness of distraction osteogenesis (DO) in the management of hypertrophic nonunions and to evaluate the complications that are commonly reported in the literature. METHODS: We searched for articles pertaining to the treatment of hypertrophic nonunion using distraction osteogenesis. Several electronic bibliographic databases and clinical trial registries were searched using the MeSH terms "hypertrophic non-union," "distraction osteogenesis," "stiff non-union," and "External Fixation" in various combinations to return the maximal number of studies for review. We performed a systematic review and identified a total of 11 studies eligible for review. RESULTS: The review of the literature demonstrated that this technique is highly effective in achieving bony union with minimal complications. The most common complication is mild superficial pin site infections, usually managed with oral antibiotics and effective wound hygiene. Other complications reported were deep pin tract infections, broken hardware, and deformity recurrence due to collapse of regenerate bone. CONCLUSION: The use of distraction osteogenesis with external fixator devices is an effective and safe method for producing bony union in hypertrophic nonunions. There were minimal associated complications.
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