Biomechanical Analysis of a spacer for knee neoplasms in terms of resection extension by means of finite elements
When knee bony tumors appear, arthrodesis is one terapeutic option after tumor block resection. The implant is composed of an intramedular nail with four interlocking pins. The whole implant is manufactured using a titanium alloy (Ti-6Al-4V). The spacer has the capability of be extended from 20 cm...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Universidad de Antioquia
2013-03-01
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| Series: | Revista Facultad de Ingeniería Universidad de Antioquia |
| Subjects: | |
| Online Access: | https://revistas.udea.edu.co/index.php/ingenieria/article/view/14779 |
| _version_ | 1797861616937598976 |
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| author | Víctor Araujo Víctor Domínguez José Martínez Genaro Rico Ernesto Delgado Daniela Alcántara Azucena Noriega Paulina Carbajal |
| author_facet | Víctor Araujo Víctor Domínguez José Martínez Genaro Rico Ernesto Delgado Daniela Alcántara Azucena Noriega Paulina Carbajal |
| author_sort | Víctor Araujo |
| collection | DOAJ |
| description |
When knee bony tumors appear, arthrodesis is one terapeutic option after tumor block resection. The implant is composed of an intramedular nail with four interlocking pins. The whole implant is manufactured using a titanium alloy (Ti-6Al-4V). The spacer has the capability of be extended from 20 cm up to 30 cm, and it is used as a definitively treatment. The use of this item reports good result despite the fact that affected limb is arthrodesed. However, it has a great interest to study the influence of bone tumor resection size on the implant integrity. To perform this research work, we developed a finite element model of the complex femur-implant-tibia, by means of Ansys software version 11 (Ansys, Inc). The loading conditions used during modeling process correspond to those occurring during midstance phase of gait. We analyzed six cases, varying spacer length: 20 cm, 22 cm, 24 cm, 26 cm, 28 cm and 30 cm. Our results indicate that there is no fracture failure risk within the implant when varying spacer length over the range previously stated, since we did not find significative difference on stress levels within the implant. However, stress levels of inter locking tibial pins are increased considerably for a resection of 24 cm or higher, this fact could lead us to implant loosening.
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| first_indexed | 2024-04-09T22:07:08Z |
| format | Article |
| id | doaj.art-5dda86ab588c44c5b8ac5a53fddd4f8d |
| institution | Directory Open Access Journal |
| issn | 0120-6230 2422-2844 |
| language | English |
| last_indexed | 2024-04-09T22:07:08Z |
| publishDate | 2013-03-01 |
| publisher | Universidad de Antioquia |
| record_format | Article |
| series | Revista Facultad de Ingeniería Universidad de Antioquia |
| spelling | doaj.art-5dda86ab588c44c5b8ac5a53fddd4f8d2023-03-23T12:35:37ZengUniversidad de AntioquiaRevista Facultad de Ingeniería Universidad de Antioquia0120-62302422-28442013-03-0153Biomechanical Analysis of a spacer for knee neoplasms in terms of resection extension by means of finite elementsVíctor Araujo0Víctor Domínguez1José Martínez2Genaro Rico3Ernesto Delgado4Daniela Alcántara5Azucena Noriega6Paulina Carbajal7National Institute of RehabilitationNational Institute of RehabilitationNational Polytechnic InstituteNational Institute of RehabilitationNational Institute of RehabilitationTechnological Institute of Higher Studies of MonterreyTechnological Institute of Higher Studies of MonterreyTechnological Institute of Higher Studies of Monterrey When knee bony tumors appear, arthrodesis is one terapeutic option after tumor block resection. The implant is composed of an intramedular nail with four interlocking pins. The whole implant is manufactured using a titanium alloy (Ti-6Al-4V). The spacer has the capability of be extended from 20 cm up to 30 cm, and it is used as a definitively treatment. The use of this item reports good result despite the fact that affected limb is arthrodesed. However, it has a great interest to study the influence of bone tumor resection size on the implant integrity. To perform this research work, we developed a finite element model of the complex femur-implant-tibia, by means of Ansys software version 11 (Ansys, Inc). The loading conditions used during modeling process correspond to those occurring during midstance phase of gait. We analyzed six cases, varying spacer length: 20 cm, 22 cm, 24 cm, 26 cm, 28 cm and 30 cm. Our results indicate that there is no fracture failure risk within the implant when varying spacer length over the range previously stated, since we did not find significative difference on stress levels within the implant. However, stress levels of inter locking tibial pins are increased considerably for a resection of 24 cm or higher, this fact could lead us to implant loosening. https://revistas.udea.edu.co/index.php/ingenieria/article/view/14779spacer arthrodesisfinite Element |
| spellingShingle | Víctor Araujo Víctor Domínguez José Martínez Genaro Rico Ernesto Delgado Daniela Alcántara Azucena Noriega Paulina Carbajal Biomechanical Analysis of a spacer for knee neoplasms in terms of resection extension by means of finite elements Revista Facultad de Ingeniería Universidad de Antioquia spacer arthrodesis finite Element |
| title | Biomechanical Analysis of a spacer for knee neoplasms in terms of resection extension by means of finite elements |
| title_full | Biomechanical Analysis of a spacer for knee neoplasms in terms of resection extension by means of finite elements |
| title_fullStr | Biomechanical Analysis of a spacer for knee neoplasms in terms of resection extension by means of finite elements |
| title_full_unstemmed | Biomechanical Analysis of a spacer for knee neoplasms in terms of resection extension by means of finite elements |
| title_short | Biomechanical Analysis of a spacer for knee neoplasms in terms of resection extension by means of finite elements |
| title_sort | biomechanical analysis of a spacer for knee neoplasms in terms of resection extension by means of finite elements |
| topic | spacer arthrodesis finite Element |
| url | https://revistas.udea.edu.co/index.php/ingenieria/article/view/14779 |
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