Patient-specific spinal bone screw fixation: homogenized versus voxel-based finite element analysis
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| Titel: | Patient-specific spinal bone screw fixation: homogenized versus voxel-based finite element analysis |
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| Autoren: | Einafshar, Mohammadjavad, Rouyin, Alireza, Rajairad, Mohadeseh, Salmani, Mohammadjavad, Farahmand, Farzam, Arjmand, Navid |
| Quelle: | Einafshar, M, Rouyin, A, Rajairad, M, Salmani, M, Farahmand, F & Arjmand, N 2023, Patient-specific spinal bone screw fixation: homogenized versus voxel-based finite element analysis. in Program & Abstracts : 15th Annual Meeting of the Danish Society of Biomechanics. pp. 28, 15th Annual DBS Meeting, Danish Society of Biomechanics, Aalborg, Denmark, 24/11/2023. |
| Verlagsinformationen: | 2023. |
| Publikationsjahr: | 2023 |
| Schlagwörter: | Pull-out test, Bone-implant intereface, complexity of validation, Bone screw fixation |
| Beschreibung: | Bone screws are vital for orthopedic procedures but often lead to issues like dislocation and bone problems. Current testing with cadaver bones is slow and lacks consistency [1,2]. Computer simulations provide a faster, cost-effective way to assess screw designs and reduce the need for human samples. Numerical models consider factors like geometry and materials but struggle with bone variability [3]. Micro finite element analysis shows promise but needs to accurately represent non-linear effects and the bone-screw interface. Few studies have compared numerical models to mechanical tests, especially concerning stiffness and strength [4]. This study aims to quantify pull-out characteristics of bone screw in both homogenized and non-homogenized material. |
| Publikationsart: | Conference object |
| Dateibeschreibung: | application/pdf |
| Sprache: | English |
| Zugangs-URL: | https://vbn.aau.dk/da/publications/df658248-da05-46be-97ff-db258b319688 https://vbn.aau.dk/ws/files/617448662/DBS_2023_Bone_Screw_Fixation.pdf |
| Dokumentencode: | edsair.dedup.wf.002..f145eab972d97f11d94e2a57bb6d5ad1 |
| Datenbank: | OpenAIRE |
Nájsť tento článok vo Web of Science | Abstract: | Bone screws are vital for orthopedic procedures but often lead to issues like dislocation and bone problems. Current testing with cadaver bones is slow and lacks consistency [1,2]. Computer simulations provide a faster, cost-effective way to assess screw designs and reduce the need for human samples. Numerical models consider factors like geometry and materials but struggle with bone variability [3]. Micro finite element analysis shows promise but needs to accurately represent non-linear effects and the bone-screw interface. Few studies have compared numerical models to mechanical tests, especially concerning stiffness and strength [4]. This study aims to quantify pull-out characteristics of bone screw in both homogenized and non-homogenized material. |
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