Paper Info
Title
Parametrizing the genioplasty: a biomechanical virtual study on soft tissue behavior
Abstract
Purpose Sliding genioplasty is used to surgically correct a retruded or misaligned chin: in this procedure, an osteotomy is performed and the bony segment is repositioned. In this study we investigate the effect of surgical parameters (bony segment movement, osteotomy design) on postop soft tissue changes in a patient cohort. Methods Seven patients were retrospectively recruited. Cone beam computed tomography data were obtained and soft tissue and bone shape reconstructions were performed. 3D models were created and surgical cuts were replicated according to postop scans. Each model was imported in ANSYS 2019R1 (Ansys Inc, USA) for simulation: the effect of variation in osteotomy plane as well as extent of bony segment movement were assessed by means of design of experiment: surgical parameters were varied in a surgically acceptable range and the soft tissue predictions were evaluated as displacement output of five craniometric landmarks. Results Simulation results show the overall changes of the lower third of the face are sensitive to changes in horizontal and vertical displacement of the bony segment as well as segment rotation. No significant changes in the soft tissue response were to attribute to the osteotomy design. Conclusions Our results are consistent with experimental findings reported in the literature: when planning genioplasty in orthognathic surgery, particular focus on the segment movement (horizontal translation, vertical translation and rotation), rather than on the design of the osteotomy itself, should be considered.
Year
DOI
Venue
2022
10.1007/s11548-021-02489-9
INTERNATIONAL JOURNAL OF COMPUTER ASSISTED RADIOLOGY AND SURGERY
Keywords
DocType
Volume
Genioplasty, Orthognathic surgery, Finite element method, Numerical modeling
Journal
17
Issue
ISSN
Citations 
1
1861-6410
0
PageRank 
References 
Authors
0.34
0
10
Name
Order
Citations
PageRank
F Ruggiero100.34
G Badiali200.34
M Bevini300.34
C Marchetti400.68
J Ong500.34
F Bolognesi600.34
Silvia Schievano7163.67
D J Dunaway800.68
Alberto Bianchi962.88
Alessandro Borghi1010.71