DISTRACTION OSTEOGENESIS OF A UNILATERAL HYPOPLASTIC MANDIBLE
AbstractSummary: Distraction osteogenesis (DO) is a surgical process in which two bony segments aregradually separated so new soft tissue and bone will form between them by applying tension through afixation device. There are three phases to this process: latency phase, distraction phase, andconsolidation phase. The technique was originally applied to long bones but in recent years the methodhas been adapted for use in maxillofacial surgery. Distraction osteogenesis is a new variation of moretraditional; orthognathic surgical procedures which can be applied for the correction of dento-facialdeformities and syndromes of the jaws, treating upper airway obstruction in paediatric patients withmandibualr retrognathia, due to tongue collapse and physical obstruction in the hypopharangeal region.It is an effective and powerful reconstructive surgical technique, which can be performed safely withoutthe need of bone graft or blood transfusion. We present treatment of a child with severe facialasymmetry after unilateral TMJ ankylosis corrected by distraction osteogenesis.
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