Home > Features > Mandibular Distraction Osteogenesis in the Treatment of Pediatric Micrognathia and Obstructive Airway: Clinical Presentations Abstract Severe mandibular hypoplasia, or micrognathia is a debilitating condition that hinders neonatal breathing, feeding, growth and development. This condition predisposes children to prolonged early life hospital admission, airway embarrassment, obstructive sleep apnea, feeding difficulties, speech delay and caregiver burnout.