Avascular necrosis in pediatric mandibular distraction - Report of a rare complication with a review on the pathogenic mechanism and management strategies

Abstract

Avascular osseo-necrosis is one of the rare complications that has never been reported in pediatric mandibular distraction. However extensive periosteal stripping, developing tooth buds and aberrations related to the inferior alveolar canal in malformed syndromic mandible may lead to compromised vascularity to the osteotomised segments leading to avascular necrosis after monofocal mandibular distraction. The aim of the current case report is to describe this rare complication after pediatric MMDO and discuss in detail the possible etio-pathologic mechanisms and provide an insight for the management strategies.

Keywords

• Avascular necrosis
• Monofocal mandibular distraction osteogenesis
• Mandibular hypoplasia
• Complications of mandibular distraction