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Article: Comparative analysis for five fixations of Pauwels-I by the biomechanical finite-element method

TitleComparative analysis for five fixations of Pauwels-I by the biomechanical finite-element method
Authors
KeywordsPauwels-I
stress
displacement
fixation
FEA
Issue Date2020
PublisherInforma Healthcare. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/08941939.asp
Citation
Journal of Investigative Surgery, 2020, v. 33 n. 5, p. 428-437 How to Cite?
AbstractBackground: Little is known about how biomechanics govern the five fixtures such as DHS, MLS, DHS + LS, LP, and HA are accepted as common therapeutic techniques. Aims and objectives: A series of numerical models for a femoral neck fracture of Pauwels-I will be constructed by innovative approach of finite element in order to determine the most optimized option in comparison with biomechanical performance. Method: Twenty sets of computer tomography scanned femora were imported onto Mimics to extract 3 D models; these specimens were transferred to Geomagic-Studio for a simulative osteotomy and kyrtograph; then, they underwent UG to fit simulative solid models; 5 sorts of fixture were then expressed by Pro-Engineer virtually. After processing with HyperMesh, all compartments (fracture model + internal implant) were assembled onto 5 systems: “Dynamic Hip Screw (DHS), Multiple Lag screw (MLS), DHS + LS, femoral Locking Plate (LP) and HemiArthroplasty (HA).” Eventually, numerical models of the finite-elemental analysis were exported to AnSys to determine the solution. Result: Four models of fixation and a simulation of HA for Pauwels-I were established, validated, and analyzed with the following findings: In term of displacement, these 5 fixtures ranged between 0.3801 and 0.7536 mm have no significant difference; in term of stress, the averages of peaks for integral assemblage are b(MLS) = 43.5766 ≈< d(LP) = 43.6657 ≈< e(Ha) = 43.6657 < c(DHS + LS) = 66.5494 < a(DHS) = 105.617 in MPa indicate that MLS, LP and HA are not significantly different, but less than DHS + LS or DHS in each. Conclusion: A fixture of MLS or LP with optional HA should be recommended to clinically optimize a Pauwels-I facture.
Persistent Identifierhttp://hdl.handle.net/10722/290954
ISSN
2020 Impact Factor: 2.533
2020 SCImago Journal Rankings: 0.381
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorPENG, MJQ-
dc.contributor.authorCHEN, HY-
dc.contributor.authorJU, XY-
dc.contributor.authorHu, Y-
dc.contributor.authorAYOUB, A-
dc.contributor.authorKHAMBAY, B-
dc.contributor.authorLIU, Z-
dc.contributor.authorBAI, B-
dc.date.accessioned2020-11-02T05:49:29Z-
dc.date.available2020-11-02T05:49:29Z-
dc.date.issued2020-
dc.identifier.citationJournal of Investigative Surgery, 2020, v. 33 n. 5, p. 428-437-
dc.identifier.issn0894-1939-
dc.identifier.urihttp://hdl.handle.net/10722/290954-
dc.description.abstractBackground: Little is known about how biomechanics govern the five fixtures such as DHS, MLS, DHS + LS, LP, and HA are accepted as common therapeutic techniques. Aims and objectives: A series of numerical models for a femoral neck fracture of Pauwels-I will be constructed by innovative approach of finite element in order to determine the most optimized option in comparison with biomechanical performance. Method: Twenty sets of computer tomography scanned femora were imported onto Mimics to extract 3 D models; these specimens were transferred to Geomagic-Studio for a simulative osteotomy and kyrtograph; then, they underwent UG to fit simulative solid models; 5 sorts of fixture were then expressed by Pro-Engineer virtually. After processing with HyperMesh, all compartments (fracture model + internal implant) were assembled onto 5 systems: “Dynamic Hip Screw (DHS), Multiple Lag screw (MLS), DHS + LS, femoral Locking Plate (LP) and HemiArthroplasty (HA).” Eventually, numerical models of the finite-elemental analysis were exported to AnSys to determine the solution. Result: Four models of fixation and a simulation of HA for Pauwels-I were established, validated, and analyzed with the following findings: In term of displacement, these 5 fixtures ranged between 0.3801 and 0.7536 mm have no significant difference; in term of stress, the averages of peaks for integral assemblage are b(MLS) = 43.5766 ≈< d(LP) = 43.6657 ≈< e(Ha) = 43.6657 < c(DHS + LS) = 66.5494 < a(DHS) = 105.617 in MPa indicate that MLS, LP and HA are not significantly different, but less than DHS + LS or DHS in each. Conclusion: A fixture of MLS or LP with optional HA should be recommended to clinically optimize a Pauwels-I facture.-
dc.languageeng-
dc.publisherInforma Healthcare. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/08941939.asp-
dc.relation.ispartofJournal of Investigative Surgery-
dc.rightsJournal of Investigative Surgery. Copyright © Informa Healthcare.-
dc.rightsThis is an electronic version of an article published in [include the complete citation information for the final version of the article as published in the print edition of the journal]. [JOURNAL TITLE] is available online at: http://www.informaworld.com/smpp/ with the open URL of your article.-
dc.subjectPauwels-I-
dc.subjectstress-
dc.subjectdisplacement-
dc.subjectfixation-
dc.subjectFEA-
dc.titleComparative analysis for five fixations of Pauwels-I by the biomechanical finite-element method-
dc.typeArticle-
dc.identifier.emailHu, Y: yhud@hku.hk-
dc.identifier.authorityHu, Y=rp00432-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1080/08941939.2018.1533054-
dc.identifier.pmid30516078-
dc.identifier.scopuseid_2-s2.0-85058171736-
dc.identifier.hkuros317837-
dc.identifier.volume33-
dc.identifier.issue5-
dc.identifier.spage428-
dc.identifier.epage437-
dc.identifier.isiWOS:000530938300005-
dc.publisher.placeUnited Kingdom-
dc.identifier.issnl0894-1939-

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