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  • Title: Internal mandibular distraction to relieve airway obstruction in infants and young children with micrognathia.
    Author: Chigurupati R, Massie J, Dargaville P, Heggie A.
    Journal: Pediatr Pulmonol; 2004 Mar; 37(3):230-5. PubMed ID: 14966816.
    Abstract:
    Micrognathia may cause upper airway obstruction requiring complex medical interventions and sometimes tracheostomy. The role of distraction techniques to lengthen the mandible is yet to be clarified. The aim of this paper is to present a series of five cases in which mandibular lengthening by osteotomy and internal distraction was used to relieve airway obstruction. Five patients whose ages ranged from 4-39 months (mean, 15 months) were managed at our center with internal distraction osteogenesis to relieve airway obstruction. Three patients had a tracheostomy, and two patients had refractory airway obstruction prior to distraction. Following osteotomy and insertion of internal distraction devices, the mandible was distracted a mean of 17 mm (range, 15-25 mm). The distraction devices were removed at the end of a consolidation period ranging from 3-10 weeks. Two of 3 patients with a tracheostomy were decannulated, while the third patient with tracheostomy is awaiting choanal atresia repair before being decannulated. The two patients who were not managed with a tracheostomy but who had persistent upper airway obstruction have not required further airway intervention after mandibular distraction. In conclusion, mandibular lengthening by distraction osteogenesis can relieve airway obstruction in infants and small children. This is a promising new technique that may avoid the need for tracheostomy in some infants with micrognathia, and facilitate early decannulation in those who have a tracheostomy.
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