Computational modelling of patient specific spring assisted lambdoid craniosynostosis correction

Lambdoid craniosynostosis (LC) is a rare non-syndromic craniosynostosis characterised by fusion of the lambdoid sutures at the back of the head. Surgical correction including the spring assisted cranioplasty is the only option to correct the asymmetry at the skull in LC. However, the aesthetic outco...

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Vydáno v:Scientific reports Ročník 10; číslo 1; s. 18693
Hlavní autoři: Bozkurt, Selim, Borghi, Alessandro, van de Lande, Lara S., Jeelani, N. U. Owase, Dunaway, David J., Schievano, Silvia
Médium: Journal Article
Jazyk:angličtina
Vydáno: London Nature Publishing Group UK 29.10.2020
Nature Publishing Group
Témata:
631/136/815
631/136/818
639/705/1042
Age
Asymmetry
Computed tomography
Computer applications
Computer Simulation
Cranial sutures
Cranial Sutures - surgery
Craniosynostoses - surgery
Craniosynostosis
Female
Finite Element Analysis
Humanities and Social Sciences
Humans
Infant
Male
Mathematical models
Medical imaging
multidisciplinary
Patients
R&D
Reconstructive Surgical Procedures - methods
Research & development
Science
Science (multidisciplinary)
Skull
Surgery
Sutures
ISSN:2045-2322, 2045-2322
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Shrnutí:Lambdoid craniosynostosis (LC) is a rare non-syndromic craniosynostosis characterised by fusion of the lambdoid sutures at the back of the head. Surgical correction including the spring assisted cranioplasty is the only option to correct the asymmetry at the skull in LC. However, the aesthetic outcome from spring assisted cranioplasty may remain suboptimal. The aim of this study is to develop a parametric finite element (FE) model of the LC skulls that could be used in the future to optimise spring surgery. The skull geometries from three different LC patients who underwent spring correction were reconstructed from the pre-operative computed tomography (CT) in Simpleware ScanIP. Initially, the skull growth between the pre-operative CT imaging and surgical intervention was simulated using MSC Marc. The osteotomies and spring implantation were performed to simulate the skull expansion due to the spring forces and skull growth between surgery and post-operative CT imaging in MSC Marc. Surface deviation between the FE models and post-operative skull models reconstructed from CT images changed between ± 5 mm over the skull geometries. Replicating spring assisted cranioplasty in LC patients allow to tune the parameters for surgical planning, which may help to improve outcomes in LC surgeries in the future.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-020-75747-6