title: 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 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.
authors.affiliation: Jules Verne University of Picardy, Amiens, France; Department of Maxillofacial Surgery, Amiens University Medical Center, Amiens, France. Electronic address: cneivavaz@gmail.com.
authors.forename: C
authors.initials: C
authors.lastname: Neiva
authors.affiliation: Jules Verne University of Picardy, Amiens, France; Department of Maxillofacial Surgery, Amiens University Medical Center, Amiens, France; Facing Faces Institute, Amiens University Medical Center, Amiens, France.
authors.forename: S
authors.initials: S
authors.lastname: Dakpe
authors.affiliation: Paris Descartes University, Paris, France; Department of Maxillofacial and Plastic Surgery, Necker Children's Hospital, Paris, France.
authors.forename: J
authors.initials: J
authors.lastname: Davrou
authors.affiliation: Department of Maxillofacial and Plastic Surgery, Necker Children's Hospital, Paris, France.
authors.forename: P-A
authors.initials: PA
authors.lastname: Dîner
authors.affiliation: Jules Verne University of Picardy, Amiens, France; Department of Maxillofacial Surgery, Amiens University Medical Center, Amiens, France; Facing Faces Institute, Amiens University Medical Center, Amiens, France.
authors.forename: B
authors.initials: B
authors.lastname: Devauchelle
authors.affiliation: Paris Descartes University, Paris, France; Department of Maxillofacial and Plastic Surgery, Necker Children's Hospital, Paris, France.
authors.forename: M-P
authors.initials: MP
authors.lastname: Vazquez
authors.affiliation: Pierre and Marie Curie University, Paris, France; Department of Maxillofacial and Plastic Surgery, Necker Children's Hospital, Paris, France.
authors.forename: A
authors.initials: A
authors.lastname: Picard
authors.affiliation: Paris Descartes University, Paris, France; Department of Maxillofacial and Plastic Surgery, Necker Children's Hospital, Paris, France.
authors.forename: N
authors.initials: N
authors.lastname: Kadlub
mesh_terms: D059925:Anatomic Landmarks / Q000000981:diagnostic imaging; D005260:Female; D006053:Goldenhar Syndrome / Q000145:classification / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008297:Male; D008334:Mandible / Q000002:abnormalities / Q000000981:diagnostic imaging; D008340:Mandibular Nerve / Q000002:abnormalities / Q000000981:diagnostic imaging*; D011446:Prospective Studies; D014057:Tomography, X-Ray Computed / Q000379:methods*
keywords: Anatomy; Craniofacial microsomia; Inferior alveolar nerve; Three-dimensional imaging