Repository logo
 
Publication

Surgical correction of scoliosis: numerical analysis and optimization of the procedure

2010Journal article Restricted access
Simple item page
dc.contributor.authorMadeira, JFA
dc.contributor.authorPina, H. L.
dc.contributor.authorPires, E. B.
dc.contributor.authorMonteiro, Joaquim
dc.date.accessioned2017-04-26T12:36:14Z
dc.date.available2017-04-26T12:36:14Z
dc.date.issued2010
dc.description.abstractA previously developed model is used to numerically simulate real clinical cases of the surgical correction of scoliosis. This model consists of one-dimensional finite elements with spatial deformation in which (i) the column is represented by its axis; (ii) the vertebrae are assumed to be rigid; and (iii) the deformability of the column is concentrated in springs that connect the successive rigid elements. The metallic rods used for the surgical correction are modeled by beam elements with linear elastic behavior. To obtain the forces at the connections between the metallic rods and the vertebrae geometrically, non-linear finite element analyses are performed. The tightening sequence determines the magnitude of the forces applied to the patient column, and it is desirable to keep those forces as small as possible. In this study, a Genetic Algorithm optimization is applied to this model in order to determine the sequence that minimizes the corrective forces applied during the surgery. This amounts to find the optimal permutation of integers 1,..., n, n being the number of vertebrae involved. As such, we are faced with a combinatorial optimization problem isomorph to the Traveling Salesman Problem. The fitness evaluation requires one computing intensive Finite Element Analysis per candidate solution and, thus, a parallel implementation of the Genetic Algorithm is developed. Copyright q 2010 John Wiley & Sons, Ltd.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMADEIRA, J. A. F.; [et al] – Surgical correction of scoliosis: numerical analysis and optimization of the procedure. International Journal for Numerical Methods in Biomedical Engineering. ISSN 2040-7947. Vol. 26, N.º 9, pp. 1087-1218.pt_PT
dc.identifier.doi10.1002/cnm.1380pt_PT
dc.identifier.issn2040-7947
dc.identifier.urihttp://hdl.handle.net/10400.21/6942
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.relationFCT-POCI 2010pt_PT
dc.relation.publisherversionhttp://onlinelibrary.wiley.com/doi/10.1002/cnm.1380/epdfpt_PT
dc.subjectScoliosispt_PT
dc.subjectcomputational biomechanicspt_PT
dc.subjectfinite element methodpt_PT
dc.subjectgenetic algorithmspt_PT
dc.subjectparallel computationpt_PT
dc.titleSurgical correction of scoliosis: numerical analysis and optimization of the procedurept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1218pt_PT
oaire.citation.issue9pt_PT
oaire.citation.startPage1087pt_PT
oaire.citation.titleInternational Journal for Numerical Methods in Biomedical Engineeringpt_PT
oaire.citation.volume26pt_PT
person.familyNameMadeira
person.familyNameMonteiro
person.givenNameJose Firmino Aguilar
person.givenNameJoaquim
person.identifier1017446
person.identifier.ciencia-id6F1E-DCF0-D6EC
person.identifier.ciencia-id4916-EA4B-17D4
person.identifier.orcid0000-0001-9523-3808
person.identifier.orcid0000-0003-1930-9123
person.identifier.ridN-6918-2016
person.identifier.ridJ-8903-2013
person.identifier.scopus-author-id7003405549
person.identifier.scopus-author-id56582664700
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationd495619a-a6ab-4ff5-8e70-3a1351f934dc
relation.isAuthorOfPublicationaf7c0e5b-adc6-467f-b817-97fbf260f102
relation.isAuthorOfPublication.latestForDiscoveryd495619a-a6ab-4ff5-8e70-3a1351f934dc

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Surgical_JFAMadeira_ADM.pdf
Size:
395.64 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ISEL - Matemática - Artigos