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Does Mandibular Distraction Vector Influence Airway Volumes and Outcome? by Elizabeth G. Zellner; Julie M. Mhlaba; Russell R. Reid; Derek M. Steinbacher is a Medicine article available to read on EtoBox.

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## Purpose: The goal of mandibular distraction in the pierre-robin sequence is to maximally expand the oropharyngeal airway. it has been hypothesized that a steep oblique distraction vector might allow greater airway enlargement compared with horizontal distraction. this study compared vector orientation in relation to airway volume and overall clinical outcome. ## Materials and methods: Micrognathic infants who underwent mandibular distraction with sufficient computed tomographic data were retrospectively reviewed. demographic, diagnostic, perioperative, and distraction data were recorded. groups were separated based on distraction vector (group 1, horizontal; group 2, oblique). airway and mandibular volumes were measured using mimics (materialise, leuven, belgium). morphologic and outcomes data were analyzed. statistics involved 2-tailed t test, pearson correlation, and analysis of covariance (ancova). ## Results: Mean age at distraction was 40 days, with devices maintained for 82 days on average. fifty percent of patients were girls and 65% had cleft palate. forty computed tomograms were analyzed. airway (1,234 vs 3,501 mm; p < .01) and mandibular (5,457 vs 11,827 mm; p < .01) v

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Author

Elizabeth G. Zellner; Julie M. Mhlaba; Russell R. Reid; Derek M. Steinbacher

Publisher

Elsevier BV

Published

2016

Language

EN

Field

Medicine (Health Sciences)