Anatomical study of the course of the inferior alveolar nerve in craniofacial microsomia using three-dimensional computed tomography: correlation with the Pruzansky classification

Abstract Dysmorphogenesis of the mandible complicates assessment of the course of the inferior alveolar nerve in patients with craniofacial microsomia. Our aim in the present study was to correlate the anatomical description of the course with the Pruzansky classification (which indicates the severi...

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Bibliographic Details
Published in:British journal of oral & maxillofacial surgery 2015-05, Vol.53 (5), p.426-429
Main Authors: Neiva, C, Dakpe, S, Davrou, J, Dîner, P.-A, Devauchelle, B, Vazquez, M.-P, Picard, A, Kadlub, N
Format: Article
Language:English
Subjects:
Anatomic Landmarks - diagnostic imaging
Anatomy
Craniofacial microsomia
Dentistry
Female
Goldenhar Syndrome - classification
Goldenhar Syndrome - diagnostic imaging
Humans
Image Processing, Computer-Assisted - methods
Imaging, Three-Dimensional - methods
Inferior alveolar nerve
Male
Mandible - abnormalities
Mandible - diagnostic imaging
Mandibular Nerve - abnormalities
Mandibular Nerve - diagnostic imaging
Prospective Studies
Surgery
Three-dimensional imaging
Tomography, X-Ray Computed - methods
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Summary:Abstract Dysmorphogenesis of the mandible complicates assessment of the course of the inferior alveolar nerve in patients with craniofacial microsomia. Our aim in the present study was to correlate the anatomical description of the course with the Pruzansky classification (which indicates the severity of hemifacial microsomia), in the mandibles of 22 affected patients using 3-dimensional computed tomography (CT). We measured the distance between fixed landmarks on the normal and the microsomic sides. The normal sides served as controls. In the group of five patients with type I disease, we found no significant differences between the unaffected and the microsomic side. In the nine patients with Pruzansky type II disease morphological views of the course showed a between-side difference in the length of the bony canal and the height of the mandibular ramus. In the five patients with Pruzansky type III disease, there was no bony canal. Three-dimensional CT analysis may be of value in plotting the course of the inferior alveolar nerve and assisting the surgeon in mandibular osteotomy or distraction osteogenesis.
ISSN:0266-4356
1532-1940
DOI:10.1016/j.bjoms.2015.02.006