https://m2.mtmt.hu/ hun 2026-09-22 19:05 JournalArticle 31900458 VALIDATED true 0 false 2026-07-02T13:19:02.802+0000 2026-03-26T10:30:09.772+0000 2021-03-04T11:27:18.580+0000 true 10062250 Molnár-Taga Márta /api/admin/10062250 Admin Molnár-Taga Márta (SE 4-es admin) true 10062250 2026-05-13T07:28:14.951+0000 2026-05-13T07:28:14.951+0000 2024-02-08T11:47:20.043+0000 true 10080205 Szalóky-Siki Ágnes /api/admin/10080205 Admin Szalóky-Siki Ágnes (SE_KK_Admin5_SZSA, admin) true Admin 10003134 /api/admin/10003134 Wolf György (MTMT Központi admin) Wolf György true 10003134 true 2026-03-03T09:19:18.190+0000 true false true 24 24 /api/publicationtype/24 PublicationType Folyóiratcikk 1 true 24 JournalArticle true 10000059 Article true 24 24 /api/publicationtype/24 PublicationType Folyóiratcikk 1 true 24 JournalArticle /api/subtype/10000059 Szakcikk SubType Szakcikk (Folyóiratcikk) 101 true 10000059 true 1 /api/category/1 Category Tudományos true 1 Eltes, P.E. true true /api/journal/10050307 REVIEWED FRONTIERS IN SURGERY 2296-875X 2296-875X true false 10050307 false 10050307 true 2296-875X 2296-875X Journal FOREIGN 7 583386 583386 10 2021 Introduction: Revision surgery of a previous lumbosacral non-union is highly challenging, especially in case of complications, such as a broken screw at the first sacral level (S1). Here, we propose the implementation of a new method based on the CT scan of a clinical case using 3D reconstruction, combined with finite element analysis (FEA), computer-assisted design (CAD), and 3D-printing technology to provide accurate surgical navigation to aid the surgeon in performing the optimal surgical technique by inserting a pedicle screw at the S1 level. Materials and Methods: A step-by-step approach was developed and performed as follows: (1) Quantitative CT based patient-specific FE model of the sacrum was created. (2) The CAD model of the pedicle screw was inserted into the sacrum model in a bicortical convergent and a monocortical divergent position, by overcoming the geometrical difficulty caused by the broken screw. (3) Static FEAs (Abaqus, Dassault Systemes) were performed using 500 N tensile load applied to the screw head. (4) A template with two screw guiding structures for the sacrum was designed and manufactured using CAD design and 3D-printing technologies, and investment casting. (5) The proposed surgical technique was performed on the patient-specific physical model created with the FDM printing technology. The patient-specific model was CT scanned and a comparison with the virtual plan was performed to evaluate the template accuracy Results: FEA results proved that the modified bicortical convergent insertion is stiffer (6,617.23 N/mm) compared to monocortical divergent placement (2,989.07 N/mm). The final template was created via investment casting from cobalt-chrome. The template design concept was shown to be accurate (grade A, Gertzbein-Robbins scale) based on the comparison of the simulated surgery using the patient-specific physical model and the 3D virtual surgical plan. Conclusion: Compared to the conventional surgical navigation techniques, the presented method allows the consideration of the patient-specific biomechanical parameters; is more affordable, and the intraoperative X-ray exposure can be reduced. This new patient- and condition-specific approach may be widely used in revision spine surgeries or in challenging primary cases after its further clinical validation. © Copyright © 2021 Eltes, Bartos, Hajnal, Pokorni, Kiss, Lacroix, Varga and Lazary. Funding 2008377 /api/funding/2008377 (FK123884) false true true 2021 true true true false true false GOLD 2026-07-02 true https://doi.org/10.3389/fsurg.2020.583386 28 0 28 25 3 28 26 22 26 28 28 25 25 25 3 0 28 25 28 25 0 2 2 Folyóiratcikk Journal Article 24 25 Könyvrészlet Chapter in Book 25 3 Könyv Book 23 0 Egyéb konferenciaközlemény Conference paper 31 0 Egyéb konferenciakötet Conference proceedings 32 0 Oltalmi formák Protection forms 26 0 Disszertáció Thesis 28 0 Egyéb Miscellaneous 29 0 Alkotás Achievement 22 0 Kutatási adat Research data 33 0 Folyóiratcikk Journal Article 24 0 0 0 Könyvrészlet Chapter in Book 25 0 0 0 Könyv Book 23 0 0 0 Egyéb konferenciaközlemény Conference paper 31 0 0 0 Egyéb konferenciakötet Conference proceedings 32 0 0 0 Oltalmi formák Protection forms 26 0 0 0 Disszertáció Thesis 28 0 0 0 Egyéb Miscellaneous 29 0 0 0 Alkotás Achievement 22 0 0 0 Kutatási adat Research data 33 0 0 0 2021 0 3 2 3 2 2022 0 6 4 6 4 2023 0 4 4 4 4 2024 0 10 10 10 10 2025 0 2 2 2 2 2026 0 3 3 3 3 Q2 false 10048475 false false false 2021-03-03T11:38:35.513+0000 Doktori Iskola (SE); Ortopédiai Klinika (SE / AOK / K) 6 11 2 8 0 true 10003134 Language 10002 /api/language/10002 Angol Angol English true 2 true PersonAuthorship 95622531 /api/authorship/95622531 Eltes, P.E. ✉ [Éltes, Péter Endre (mozgásszervek bio...), szerző] Doktori Iskola (SE) 1 0.125 true false true Author 10048475 /api/author/10048475 Éltes Péter Endre (mozgásszervek biomechanikája) Éltes Péter Endre true 10048475 true Eltes P.E. true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PersonAuthorship 95622532 /api/authorship/95622532 Bartos, M. [Bartos, Márton (ortopédia, gerinc...), szerző] 2 0.125 false false false Author 10090236 /api/author/10090236 Bartos Márton (ortopédia, gerincsebészet) Bartos Márton true true Bartos M. true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PersonAuthorship 95622533 /api/authorship/95622533 Hajnal, B. [Hajnal, Benjámin (Mozgásszervek bio...), szerző] 3 0.125 false false false Author 10073427 /api/author/10073427 Hajnal Benjámin (Mozgásszervek biomechanikája) Hajnal Benjámin true true Hajnal B. true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PersonAuthorship 95622534 /api/authorship/95622534 Pokorni, A.J. [Pokorni, Ágoston Jakab (Mozgásszervek bio...), szerző] 4 0.125 false false false Author 10078308 /api/author/10078308 Pokorni Ágoston Jakab (Mozgásszervek biomechanikája) Pokorni Ágoston Jakab true true Pokorni A.J. true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PersonAuthorship 95622535 /api/authorship/95622535 Kiss, L. [Kiss, László (Gerincsebész), szerző] Doktori Iskola (SE) 5 0.125 false false false Author 10051351 /api/author/10051351 Kiss László (Gerincsebész) Kiss László true 10051351 true Kiss L. true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PersonAuthorship 95622536 /api/authorship/95622536 Lacroix, D. 6 0.125 false false false Lacroix D. true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PersonAuthorship 95622537 /api/authorship/95622537 Varga, P.P. 7 0.125 false false false Varga P.P. true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PersonAuthorship 95622538 /api/authorship/95622538 Lazary, A. [Lazáry, Áron (Gerincsebész), szerző] Ortopédiai Klinika (SE / AOK / K) 8 0.125 false true false Author 10018922 /api/author/10018922 Lazáry Áron (Gerincsebész) Lazáry Áron true 10018922 true Lazary A. true false false AuthorshipType 1 /api/authorshiptype/1 Szerző 0 true 0 true false true PublicationIdentifier 18498934 /api/publicationidentifier/18498934 DOI: 10.3389/fsurg.2020.583386 PlainSource 6 /api/publicationsource/6 DOI PublicationSourceType 10001 /api/publicationsourcetype/10001 DOI true true true DOI DOI https://doi.org/@@@ true true 6 true GOLD true IDENTICAL 10.3389/fsurg.2020.583386 https://doi.org/10.3389/fsurg.2020.583386 false true PublicationIdentifier 18498935 /api/publicationidentifier/18498935 WoS: 000616637200001 PlainSource 1 /api/publicationsource/1 WoS PublicationSourceType 10003 /api/publicationsourcetype/10003 Indexelő adatbázis false true true WoS WoS https://www.webofscience.com/wos/woscc/full-record/@@@ true true 1 true IDENTICAL 000616637200001 https://www.webofscience.com/wos/woscc/full-record/000616637200001 false true PublicationIdentifier 18618053 /api/publicationidentifier/18618053 SE Repozitórium: 8823 SwordSource 84 /api/publicationsource/84 SE Repozitórium PublicationSourceType 10007 /api/publicationsourcetype/10007 Repozitórium true true true SE Repozitórium SE Repozitórium https://repo.lib.semmelweis.hu/handle/123456789/@@@ true true 84 true GOLD true IDENTICAL 8823 https://repo.lib.semmelweis.hu/handle/123456789/8823 false true PublicationIdentifier 18498933 /api/publicationidentifier/18498933 Scopus: 85101032214 PlainSource 3 /api/publicationsource/3 Scopus PublicationSourceType 10003 /api/publicationsourcetype/10003 Indexelő adatbázis false true true Scopus Scopus http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-@@@ true true 3 true IDENTICAL 85101032214 http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-85101032214 false true PublicationIdentifier 19289500 /api/publicationidentifier/19289500 PubMed: 33585544 PlainSource 17 /api/publicationsource/17 PubMed PublicationSourceType 10003 /api/publicationsourcetype/10003 Indexelő adatbázis false true true PubMed PubMed http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=@@@&dopt=Abstract true true 17 true IDENTICAL 33585544 http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=33585544&dopt=Abstract false true PublicationIdentifier 32020521 /api/publicationidentifier/32020521 Egyéb URL: https://www.scopus.com/pages/publications/85101032214?origin=resultslist PlainSource 40 /api/publicationsource/40 Egyéb URL PublicationSourceType 10006 /api/publicationsourcetype/10006 Link true true true Egyéb URL Other URL @@@ true true 40 true NONE IDENTICAL https://www.scopus.com/pages/publications/85101032214?origin=resultslist https://www.scopus.com/pages/publications/85101032214?origin=resultslist false true Classification 12124 /api/classification/12124 Orvos- és egészségtudomány true true Keyword 6407 /api/keyword/6407 NAVIGATION true 6407 true Keyword 17482 /api/keyword/17482 computed tomography true 17482 true Keyword 1046325 /api/keyword/1046325 spine surgery true 1046325 true Keyword 1143083 /api/keyword/1143083 Finite element simulation true 1143083 true Keyword 1278371 /api/keyword/1278371 3D printing true 1278371 true Keyword 2283768 /api/keyword/2283768 surgical guidance/navigation true true SjrRating 11235531 /api/sjrrating/11235531 sjr:Q2 (2021) Scopus - Surgery FRONTIERS IN SURGERY 2296-875X 190 0.49 journal RatingType 10002 /api/ratingtype/10002 sjr sjr true true ClassificationExternal 2746 /api/classificationexternal/2746 Scopus - Surgery true 2746 true Q2 DIRECT true true Reference 18762500 /api/reference/18762500 1. 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Development of a Computer-Aided Design and Finite Element Analysis Combined Method for Affordable Spine Surgical Navigation With 3D-Printed Customized Template. (2021) FRONTIERS IN SURGERY 2296-875X 2296-875X 7<div class="JournalArticle Publication long-list"> <div class="authors"> <img title="Forrásközlemény" style="float: left" src="/frontend/resources/grid/publication-core-icon.png"> <img title="Idézőközlemény" style="float: left" src="/frontend/resources/grid/publication-citation-icon.png"> <div class="autype autype0"> <span class="author-name" mtid="10048475"><a href="/gui2/?type=authors&mode=browse&sel=10048475" target="_blank">Eltes P.E. ✉ (<span class="authorship-author-name">Éltes Péter Endre</span> <span class="authorAux-mtmt"> mozgásszervek biomechanikája</span>) </a> </span> <span class="author-affil"><span title="Semmelweis Egyetem">SE</span>/Doktori Iskola</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10090236"><a href="/gui2/?type=authors&mode=browse&sel=10090236" target="_blank">Bartos M. (<span class="authorship-author-name">Bartos Márton</span> <span class="authorAux-mtmt"> ortopédia, gerincsebészet</span>) </a> </span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10073427"><a href="/gui2/?type=authors&mode=browse&sel=10073427" target="_blank">Hajnal B. (<span class="authorship-author-name">Hajnal Benjámin</span> <span class="authorAux-mtmt"> Mozgásszervek biomechanikája</span>) </a> </span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10078308"><a href="/gui2/?type=authors&mode=browse&sel=10078308" target="_blank">Pokorni A.J. (<span class="authorship-author-name">Pokorni Ágoston Jakab</span> <span class="authorAux-mtmt"> Mozgásszervek biomechanikája</span>) </a> </span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10051351"><a href="/gui2/?type=authors&mode=browse&sel=10051351" target="_blank">Kiss L. (<span class="authorship-author-name">Kiss László</span> <span class="authorAux-mtmt"> Gerincsebész</span>) </a> </span> <span class="author-affil"><span title="Semmelweis Egyetem">SE</span>/Doktori Iskola</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" >Lacroix D. </span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" >Varga P.P. </span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10018922"><a href="/gui2/?type=authors&mode=browse&sel=10018922" target="_blank">Lazary A. (<span class="authorship-author-name">Lazáry Áron</span> <span class="authorAux-mtmt"> Gerincsebész</span>) </a> </span> <span class="author-affil"><span title="Semmelweis Egyetem">SE</span>/<span title="Általános Orvostudományi Kar">AOK</span>/<span title="Klinikum">K</span>/Ortopédiai Klinika</span> </div> </div> <div class="title"><a href="/gui2/?mode=browse&params=publication;31900458" target="_blank">Development of a Computer-Aided Design and Finite Element Analysis Combined Method for Affordable Spine Surgical Navigation With 3D-Printed Customized Template</a></div> <div> <span class="journal-title">FRONTIERS IN SURGERY</span> <span class="journal-issn">(<a target="_blank" href="https://portal.issn.org/resource/ISSN/2296-875X">2296-875X</a> <a target="_blank" href="https://portal.issn.org/resource/ISSN/2296-875X">2296-875X</a>)</span>: <span class="journal-volume">7</span> <span class="page"> Paper 583386. 10 p. </span> <span class="year">(2021)</span> </div> <div class="pub-footer"> <span class="language" xmlns="http://www.w3.org/1999/html">Nyelv: Angol | </span> <span class="identifiers"> <span class="id identifier oa_GOLD" title=" Gold "> <a style="color:blue" title="10.3389/fsurg.2020.583386" target="_blank" href="https://doi.org/10.3389/fsurg.2020.583386"> DOI </a> </span> <span class="id identifier oa_none" title="none"> <a style="color:blue" title="000616637200001" target="_blank" href="https://www.webofscience.com/wos/woscc/full-record/000616637200001"> WoS </a> </span> <span class="id identifier oa_GOLD" title=" Gold "> <a style="color:blue" title="8823" target="_blank" href="https://repo.lib.semmelweis.hu/handle/123456789/8823"> SE Repozitórium </a> </span> <span class="id identifier oa_none" title="none"> <a style="color:blue" title="85101032214" target="_blank" href="http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-85101032214"> Scopus </a> </span> <span class="id identifier oa_none" title="none"> <a style="color:blue" title="33585544" target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=33585544&dopt=Abstract"> PubMed </a> </span> <span class="id identifier oa_NONE" title=" Nincs "> <a style="color:blue" title="https://www.scopus.com/pages/publications/85101032214?origin=resultslist" target="_blank" href="https://www.scopus.com/pages/publications/85101032214?origin=resultslist"> Egyéb URL </a> </span> </span> <OnlyViewableByAuthor><div class="ratings"> <div class="journal-subject">Folyóirat szakterülete: Scopus - Surgery&nbsp;&nbsp;&nbsp;SJR indikátor:&nbsp;Q2</div> </div></OnlyViewableByAuthor> <div class="publication-citation" style="margin-left: 0.5cm;"> <span title="Nyilvános idézőközlemények összesen, említések nélkül" class="citingPub-count">Nyilvános idéző összesen: 28</span> | Független: 25 | Függő: 3 | Nem jelölt: 0 | WoS jelölt: 22 | Scopus jelölt:&nbsp;26 | WoS/Scopus jelölt:&nbsp;28 | DOI jelölt:&nbsp;26 </div> <div class="publication-citation"> <a target="_blank" href="/api/publication?cond=citations.related;eq;31900458&sort=publishedYear,desc&sort=title"> Idézett közlemények száma: 2 </a> </div> <div class="mtid"><span class="long-pub-mtid">Közlemény: 31900458</span> | <span class="status-data status-VALIDATED"> Egyeztetett </span> Forrás Idéző | <span class="type-subtype">Folyóiratcikk ( Szakcikk ) </span> | <span class="pub-category">Tudományos</span> | <span class="publication-sourceOfData">Scopus</span> </div> <div class="funder"> (FK123884) </div> <div class="lastModified">Utolsó módosítás: 2026.03.26. 11:30 Balázs András (MTMT Központ, admin) </div> <div class="lockedBy">Központi kezelésű 2026.03.03. 10:19 Wolf György (MTMT Központi admin) </div> </div></div>