3D analysis of condylar remodelling and skeletal relapse following bilateral sagittal split advancement osteotomies

Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery
T XiT J J Maal

Abstract

A major concern in mandibular advancement surgery using bilateral sagittal split osteotomies (BSSO) is potential postoperative relapse. Although the role of postoperative changes in condylar morphology on skeletal relapse was reported in previous studies, no study so far has objectified the precise changes of the condylar volume. The aim of the present study was to quantify the postoperative volume changes of condyles and its role on skeletal stability following BSSO mandibular advancement surgery. A total of 56 patients with mandibular hypoplasia who underwent BSSO advancement surgery were prospectively enrolled into the study. A cone beam computed tomography (CBCT) scan was acquired preoperatively, at 1 week postoperatively and at 1 year postoperatively. After the segmentation of the facial skeleton and condyles, three-dimensional cephalometry and condylar volume analysis were performed. The mean mandibular advancement was 4.6 mm, and the mean postoperative relapse was 0.71 mm. Of 112 condyles, 55% showed a postoperative decrease in condylar volume, with a mean reduction of 105 mm(3) (6.1% of the original condylar volume). The magnitude of condylar remodelling (CR) was significantly correlated with skeletal relapse (p = 0.003...Continue Reading

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Citations

Mar 30, 2016·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Thomas MückeDenys John Loeffelbein
Nov 29, 2015·Dental Clinics of North America·Mansur Ahmad, Eric L Schiffman
Sep 1, 2015·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Tong XiThomas Maal
Jun 24, 2016·European Journal of Orthodontics·Sophia MousouleaTheodore Eliades
Jul 15, 2017·International Journal of Oral Science·Laura Ferreira Pinheiro NicolieloReinhilde Jacobs
Dec 9, 2017·Cranio : the Journal of Craniomandibular Practice·Rafaela ScariotAlexandre Rezende Vieira
Oct 26, 2018·The Journal of Craniofacial Surgery·Constantinus PolitisJimoh Olubanwo Agbaje
Nov 2, 2019·Dento Maxillo Facial Radiology·Pieter-Jan VerhelstReinhilde Jacobs
Feb 16, 2021·Journal of the Formosan Medical Association = Taiwan Yi Zhi·Li-Fang HsuChung-Chen Jane Yao
Feb 20, 2021·Brazilian Oral Research·Tania Camila NiÑo-SandovalBelmiro Cavalcanti do Egito Vasconcelos
Mar 14, 2021·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Lauren EhardtLucia Cevidanes
Sep 21, 2020·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Justin J KimDan L Romanyk

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