A Novel Locking Buttress Plate Designed for Simultaneous Medial and Posterolateral Tibial Plateau Fractures: Concept and Comparative Finite Element Analysis
Objective The complex tibial plateau fractures involving both medial and posterolateral columns are of frequent occurrence in clinics, but the existing fixation system cannot deal with medial and posterolateral fragments simultaneously. Therefore, a novel locking buttress plate named as medial and p...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-04-01
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| Series: | Orthopaedic Surgery |
| Subjects: | |
| Online Access: | https://doi.org/10.1111/os.13660 |
| _version_ | 1797847291141292032 |
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| author | Bangji Yan Xiaotao Huang Yingxing Xu Chengshi Zou |
| author_facet | Bangji Yan Xiaotao Huang Yingxing Xu Chengshi Zou |
| author_sort | Bangji Yan |
| collection | DOAJ |
| description | Objective The complex tibial plateau fractures involving both medial and posterolateral columns are of frequent occurrence in clinics, but the existing fixation system cannot deal with medial and posterolateral fragments simultaneously. Therefore, a novel locking buttress plate named as medial and posterior column plate (MPCP) was designed in this study to fix the simultaneous medial and posterolateral tibial plateau fractures. Meanwhile, the comparative finite element analysis (FEA) was conducted to investigate the discrepancy between MPCP and traditional multiple plates (MP + PLP) in their biomechanical characteristics. Methods Two 3D finite element models of simultaneous medial and posterolateral tibial plateau fracture fixed with MPCP and MP + PLP system, respectively, was constructed. To imitate the axial stress of knee joint in ordinary life, diverse axial forces with 100, 500, 1000, and 1500 N were applied in the two fixation models, and then the equivalent displacement and stress nephograms and values were obtained. Results The similar trend of displacement and stress increasing with the loads was observed in the two fixation models. However, several heterogeneities of displacement and stress distribution were found in the two fixation models. The max displacement and von Mises stress values of plates, screws, and fragments in the MPCP fixation model were significantly smaller than that in the MP + PLP fixation model, except for the max‐shear stress values. Conclusion As a single locking buttress plate, the MPCP system showed the excellent benefit on improving the stability of the simultaneous medial and posterolateral tibial plateau fractures, compared with the traditional double plate fixation system. However, the excessive shear stress around screw holes should be paid attention to prevent trabecular microfracture and screw loosening. |
| first_indexed | 2024-04-09T18:08:57Z |
| format | Article |
| id | doaj.art-62f021bfa4b94075bc96c9c07e67adad |
| institution | Directory Open Access Journal |
| issn | 1757-7853 1757-7861 |
| language | English |
| last_indexed | 2024-04-09T18:08:57Z |
| publishDate | 2023-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Orthopaedic Surgery |
| spelling | doaj.art-62f021bfa4b94075bc96c9c07e67adad2023-04-14T04:21:20ZengWileyOrthopaedic Surgery1757-78531757-78612023-04-011541104111610.1111/os.13660A Novel Locking Buttress Plate Designed for Simultaneous Medial and Posterolateral Tibial Plateau Fractures: Concept and Comparative Finite Element AnalysisBangji Yan0Xiaotao Huang1Yingxing Xu2Chengshi Zou3Department of Orthopaedics and Traumatology Cixi Hospital of Traditional Chinese Medicine Ningbo ChinaDepartment of Orthopaedics and Traumatology Cixi Hospital of Traditional Chinese Medicine Ningbo ChinaDepartment of Trauma Center First Affiliated Hospital of Kunming Medical University Kunming ChinaDepartment of Radiology Cixi Hospital of Traditional Chinese Medicine Ningbo ChinaObjective The complex tibial plateau fractures involving both medial and posterolateral columns are of frequent occurrence in clinics, but the existing fixation system cannot deal with medial and posterolateral fragments simultaneously. Therefore, a novel locking buttress plate named as medial and posterior column plate (MPCP) was designed in this study to fix the simultaneous medial and posterolateral tibial plateau fractures. Meanwhile, the comparative finite element analysis (FEA) was conducted to investigate the discrepancy between MPCP and traditional multiple plates (MP + PLP) in their biomechanical characteristics. Methods Two 3D finite element models of simultaneous medial and posterolateral tibial plateau fracture fixed with MPCP and MP + PLP system, respectively, was constructed. To imitate the axial stress of knee joint in ordinary life, diverse axial forces with 100, 500, 1000, and 1500 N were applied in the two fixation models, and then the equivalent displacement and stress nephograms and values were obtained. Results The similar trend of displacement and stress increasing with the loads was observed in the two fixation models. However, several heterogeneities of displacement and stress distribution were found in the two fixation models. The max displacement and von Mises stress values of plates, screws, and fragments in the MPCP fixation model were significantly smaller than that in the MP + PLP fixation model, except for the max‐shear stress values. Conclusion As a single locking buttress plate, the MPCP system showed the excellent benefit on improving the stability of the simultaneous medial and posterolateral tibial plateau fractures, compared with the traditional double plate fixation system. However, the excessive shear stress around screw holes should be paid attention to prevent trabecular microfracture and screw loosening.https://doi.org/10.1111/os.13660BiomechanicsFinite Element AnalysisFixationLocking Buttress PlateTibial Plateau Fracture |
| spellingShingle | Bangji Yan Xiaotao Huang Yingxing Xu Chengshi Zou A Novel Locking Buttress Plate Designed for Simultaneous Medial and Posterolateral Tibial Plateau Fractures: Concept and Comparative Finite Element Analysis Orthopaedic Surgery Biomechanics Finite Element Analysis Fixation Locking Buttress Plate Tibial Plateau Fracture |
| title | A Novel Locking Buttress Plate Designed for Simultaneous Medial and Posterolateral Tibial Plateau Fractures: Concept and Comparative Finite Element Analysis |
| title_full | A Novel Locking Buttress Plate Designed for Simultaneous Medial and Posterolateral Tibial Plateau Fractures: Concept and Comparative Finite Element Analysis |
| title_fullStr | A Novel Locking Buttress Plate Designed for Simultaneous Medial and Posterolateral Tibial Plateau Fractures: Concept and Comparative Finite Element Analysis |
| title_full_unstemmed | A Novel Locking Buttress Plate Designed for Simultaneous Medial and Posterolateral Tibial Plateau Fractures: Concept and Comparative Finite Element Analysis |
| title_short | A Novel Locking Buttress Plate Designed for Simultaneous Medial and Posterolateral Tibial Plateau Fractures: Concept and Comparative Finite Element Analysis |
| title_sort | novel locking buttress plate designed for simultaneous medial and posterolateral tibial plateau fractures concept and comparative finite element analysis |
| topic | Biomechanics Finite Element Analysis Fixation Locking Buttress Plate Tibial Plateau Fracture |
| url | https://doi.org/10.1111/os.13660 |
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