Infant mandibular distraction with an internal curvilinear device

Area of Science:

• Craniofacial Surgery
• Pediatric Otolaryngology
• Biomedical Engineering

Background:

• Mandibular hypoplasia in infants can cause severe airway obstruction.
• Previous mandibular distraction devices have had limitations, including poor vector control and bulky hardware.
• An internal curvilinear device was developed to address these issues.

Purpose of the Study:

• To describe the use, indications, and outcomes of an internal curvilinear mandibular distractor in infants.
• To evaluate the effectiveness of this device in relieving airway obstruction.
• To assess complications associated with this novel device.

Main Methods:

• A retrospective study of 12 micrognathic infants (9 days to 8 months) undergoing mandibular distraction.
• Preoperative and postoperative assessment included maxillomandibular discrepancy, sleep studies, feeding evaluations, and 3D CT scans.
• Multidisciplinary team evaluation was performed preoperatively.

Main Results:

• All patients completed distraction without major complications; one had temporary facial nerve weakness.
• Significant improvement in obstructive apnea was observed in all affected patients.
• One infant with feeding difficulties achieved complete oral feeds post-distraction.

Conclusions:

• Internal curvilinear mandibular distraction is an effective treatment for airway obstruction in micrognathic infants.
• This device offers an alternative that avoids complications associated with external devices.
• The technique shows promise for improving feeding and overall quality of life.