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A Craniometric Analysis of the Posterior Cranial Base After Posterior Vault Distraction
- Source :
- Journal of Craniofacial Surgery. 30:1692-1695
- Publication Year :
- 2019
- Publisher :
- Ovid Technologies (Wolters Kluwer Health), 2019.
-
Abstract
- Background Posterior vault distraction osteogenesis (PVDO) has been demonstrated to effectively increase intracranial volume, treat increased intracranial pressure, and improve head shape in syndromic patients. The purpose of this study is to compare changes along the posterior cranial base before and after distraction. Methods A retrospective review was completed of subjects who underwent PVDO with computed tomography scans at 2 time-points: within 3 months preoperatively and 1 to 6 months postoperatively. Using Mimics software, craniometric landmarks were identified and surface area of the foramen magnum was calculated. A comparison of pre- to postoperative measurements was completed using Wilcoxon matched-paired signed rank tests and linear regression. Results A total of 65 PVDO subjects were identified, 12 subjects met inclusion criteria. Mean operative age was 3.0 ± 4.0 years. The cranial vault was distracted on average 25.0 ± 6.0 mm, with those 12 months of age distracted 22.0 ± 4.9 mm (P = 0.0543). There was a significant increase in pre- to postoperative foramen magnum surface area (52.1 ± 63.2 mm, P = 0.002), length (0.9 ± 1.4 mm, P = 0.050), and width (0.6 ± 1.0 mm, P = 0.050). Similarly, linear distances between nasion and posterior cranial base landmarks such as foramen magnum (3.4 ± 4.2 mm, P = 0.010), and occipital protuberance (9.1 ± 9.6 mm, P = 0.003) were increased. Subjects under 12 months had a greater percentage increases in posterior vault length than those over 12 months. Conclusion Posterior vault distraction osteogenesis is associated with an increase in size of the foramen magnum, and lengthening of the posterior cranial base, both of which may be beneficial in patients with turribrachycephaly.
- Subjects :
- Cephalometry
medicine.medical_treatment
Osteogenesis, Distraction
03 medical and health sciences
0302 clinical medicine
Distraction
Cranial vault
Humans
Medicine
Foramen Magnum
Postoperative Period
Child
030223 otorhinolaryngology
Retrospective Studies
Intracranial pressure
Skull Base
Foramen magnum
business.industry
Infant, Newborn
Occipital bone
Infant
030206 dentistry
General Medicine
Craniometry
medicine.anatomical_structure
Otorhinolaryngology
Child, Preschool
Occipital Bone
Distraction osteogenesis
Surgery
Nasion
Tomography, X-Ray Computed
business
Nuclear medicine
Algorithms
Subjects
Details
- ISSN :
- 10492275
- Volume :
- 30
- Database :
- OpenAIRE
- Journal :
- Journal of Craniofacial Surgery
- Accession number :
- edsair.doi.dedup.....0cb2a1801da54624f26c2674f390564d