Biomechanics and finite element analysis of a novel plate designed for posterolateral tibial plateau fractures via the anterolateral approach
Abstract Surgical management of posterolateral tibial plateau (PLTP) fractures is challenging. One reason for this challenge is the lack of suitable internal fixation devices. Our aim was to introduce a novel plate via the anterolateral approach for managing PLTP fractures. The biomechanical testing...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-11-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-47575-x |
| _version_ | 1797560043434934272 |
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| author | CongMing Zhang HuanAn Bai Teng Ma Lu Liu Zhong Li Kun Zhang Qiang Huang Qian Wang |
| author_facet | CongMing Zhang HuanAn Bai Teng Ma Lu Liu Zhong Li Kun Zhang Qiang Huang Qian Wang |
| author_sort | CongMing Zhang |
| collection | DOAJ |
| description | Abstract Surgical management of posterolateral tibial plateau (PLTP) fractures is challenging. One reason for this challenge is the lack of suitable internal fixation devices. Our aim was to introduce a novel plate via the anterolateral approach for managing PLTP fractures. The biomechanical testing and finite element analysis (FEA) were performed. PLTP fracture models were created using synthetic tibias (n = 10 within each group). These models were randomly assigned to three groups (groups A-C) and fixed with the lateral locking plate, the posterior buttress plate, and the novel plate, respectively. The vertical displacement of the posterolateral fragments was evaluated using biomechanical testing and FEA under axial loads of 250 N, 500 N, and 750 N. We also evaluated the stress distribution and maximum stress of each fracture model using FEA. Biomechanically, under the same loads of 250 N, 500 N, or 750 N, the vertical displacement was significantly different among the three fixation groups (p ≤ 0.001). FEA data indicated that the maximum displacement from group A to C was 3.58 mm, 3.23 mm, and 2.78 mm at 750 N, respectively. The maximum stress from group A to C was 220.88 MPa, 194.63 MPa, and 156.77 MPa in implants, and 62.02 MPa, 77.71 MPa, and 54.15 MPa in bones at 750 N, respectively. The general trends at 250 N and 500 N were consistent with those at 750 N. Based on our biomechanical and FEA results, the novel plate could be a good option for treating PLTP fractures. The novel plate showed stable and reliable features, indicating its suitability for further clinical application. |
| first_indexed | 2024-03-10T17:54:52Z |
| format | Article |
| id | doaj.art-674795ae56544a73906fa39c8609fbb5 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-10T17:54:52Z |
| publishDate | 2023-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-674795ae56544a73906fa39c8609fbb52023-11-20T09:14:25ZengNature PortfolioScientific Reports2045-23222023-11-0113111010.1038/s41598-023-47575-xBiomechanics and finite element analysis of a novel plate designed for posterolateral tibial plateau fractures via the anterolateral approachCongMing Zhang0HuanAn Bai1Teng Ma2Lu Liu3Zhong Li4Kun Zhang5Qiang Huang6Qian Wang7Department of Orthopedics, Hong Hui Hospital, Xi’an Jiaotong UniversityDepartment of Orthopedics, Hong Hui Hospital, Xi’an Jiaotong UniversityDepartment of Orthopedics, Hong Hui Hospital, Xi’an Jiaotong UniversityDepartment of Orthopedics, Hong Hui Hospital, Xi’an Jiaotong UniversityDepartment of Orthopedics, Hong Hui Hospital, Xi’an Jiaotong UniversityDepartment of Orthopedics, Hong Hui Hospital, Xi’an Jiaotong UniversityDepartment of Orthopedics, Hong Hui Hospital, Xi’an Jiaotong UniversityDepartment of Orthopedics, Hong Hui Hospital, Xi’an Jiaotong UniversityAbstract Surgical management of posterolateral tibial plateau (PLTP) fractures is challenging. One reason for this challenge is the lack of suitable internal fixation devices. Our aim was to introduce a novel plate via the anterolateral approach for managing PLTP fractures. The biomechanical testing and finite element analysis (FEA) were performed. PLTP fracture models were created using synthetic tibias (n = 10 within each group). These models were randomly assigned to three groups (groups A-C) and fixed with the lateral locking plate, the posterior buttress plate, and the novel plate, respectively. The vertical displacement of the posterolateral fragments was evaluated using biomechanical testing and FEA under axial loads of 250 N, 500 N, and 750 N. We also evaluated the stress distribution and maximum stress of each fracture model using FEA. Biomechanically, under the same loads of 250 N, 500 N, or 750 N, the vertical displacement was significantly different among the three fixation groups (p ≤ 0.001). FEA data indicated that the maximum displacement from group A to C was 3.58 mm, 3.23 mm, and 2.78 mm at 750 N, respectively. The maximum stress from group A to C was 220.88 MPa, 194.63 MPa, and 156.77 MPa in implants, and 62.02 MPa, 77.71 MPa, and 54.15 MPa in bones at 750 N, respectively. The general trends at 250 N and 500 N were consistent with those at 750 N. Based on our biomechanical and FEA results, the novel plate could be a good option for treating PLTP fractures. The novel plate showed stable and reliable features, indicating its suitability for further clinical application.https://doi.org/10.1038/s41598-023-47575-x |
| spellingShingle | CongMing Zhang HuanAn Bai Teng Ma Lu Liu Zhong Li Kun Zhang Qiang Huang Qian Wang Biomechanics and finite element analysis of a novel plate designed for posterolateral tibial plateau fractures via the anterolateral approach Scientific Reports |
| title | Biomechanics and finite element analysis of a novel plate designed for posterolateral tibial plateau fractures via the anterolateral approach |
| title_full | Biomechanics and finite element analysis of a novel plate designed for posterolateral tibial plateau fractures via the anterolateral approach |
| title_fullStr | Biomechanics and finite element analysis of a novel plate designed for posterolateral tibial plateau fractures via the anterolateral approach |
| title_full_unstemmed | Biomechanics and finite element analysis of a novel plate designed for posterolateral tibial plateau fractures via the anterolateral approach |
| title_short | Biomechanics and finite element analysis of a novel plate designed for posterolateral tibial plateau fractures via the anterolateral approach |
| title_sort | biomechanics and finite element analysis of a novel plate designed for posterolateral tibial plateau fractures via the anterolateral approach |
| url | https://doi.org/10.1038/s41598-023-47575-x |
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