Exploring the optimal reconstruction strategy for Enneking III defects in pelvis bone tumors: a finite element analysis
Abstract Background Controversy exists regarding the reconstruction of bone defects in Enneking III. This study aimed to use the finite element analysis (FEA) method to clarify (1) the utility of reconstructing the pelvis Enneking III region and (2) the optimal approach for this reconstruction. Meth...
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BMC
2025-01-01
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| Series: | Journal of Orthopaedic Surgery and Research |
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| Online Access: | https://doi.org/10.1186/s13018-025-05500-0 |
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| author | Jiazhuang Zhu Jianping Hu Kunpeng Zhu Xiaolong Ma Zhen Huang Chunlin Zhang |
| author_facet | Jiazhuang Zhu Jianping Hu Kunpeng Zhu Xiaolong Ma Zhen Huang Chunlin Zhang |
| author_sort | Jiazhuang Zhu |
| collection | DOAJ |
| description | Abstract Background Controversy exists regarding the reconstruction of bone defects in Enneking III. This study aimed to use the finite element analysis (FEA) method to clarify (1) the utility of reconstructing the pelvis Enneking III region and (2) the optimal approach for this reconstruction. Methods FEA models were generated for three types of Enneking III defects in the pelvis, replacing all the defect areas in region III with a sizable solid box for topology optimization (TO). Based on the defect location and TO results, three reconstruction schemes were designed for each type of defect. We subsequently conducted simulations of static FEA under natural walking loads using ANSYS software (version 2022R1, Canonsburg, Pennsylvania, USA). Results Compared with Scheme A, reconstruction of the Enneking III region (Schemes B and C) led to a more uniform stress distribution and lower peak stress in the pelvis. Moreover, prostheses and screws exhibit decreased peak stress and deformation, with complex reconstruction schemes (C) outperforming simpler ones (B). Conclusions The FEA results suggest that reconstructing Enneking Zone III defects improves stress distribution and reduces peak stress in the pelvis compared to non-reconstruction, potentially enhancing stability and reducing fracture risks. Complex reconstruction schemes involving more contralateral pelvis regions demonstrate superior biomechanical performance. However, clinical decisions should be individualized, integrating biomechanical insights with comprehensive patient-specific factors. |
| format | Article |
| id | doaj-art-c2afd4ac8ec245e5a2fb3d4c005d9da0 |
| institution | Kabale University |
| issn | 1749-799X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | BMC |
| record_format | Article |
| series | Journal of Orthopaedic Surgery and Research |
| spelling | doaj-art-c2afd4ac8ec245e5a2fb3d4c005d9da02025-01-26T12:43:34ZengBMCJournal of Orthopaedic Surgery and Research1749-799X2025-01-0120111010.1186/s13018-025-05500-0Exploring the optimal reconstruction strategy for Enneking III defects in pelvis bone tumors: a finite element analysisJiazhuang Zhu0Jianping Hu1Kunpeng Zhu2Xiaolong Ma3Zhen Huang4Chunlin Zhang5Department of Orthopedic Surgery, Shanghai Tenth People’s Hospital, Tongji University School of MedicineDepartment of Orthopedic Surgery, Shanghai Tenth People’s Hospital, Tongji University School of MedicineDepartment of Orthopedic Surgery, Shanghai Tenth People’s Hospital, Tongji University School of MedicineDepartment of Orthopedic Surgery, Shanghai Tenth People’s Hospital, Tongji University School of MedicineDepartment of Orthopedic Surgery, Shanghai Tenth People’s Hospital, Tongji University School of MedicineDepartment of Orthopedic Surgery, Shanghai Tenth People’s Hospital, Tongji University School of MedicineAbstract Background Controversy exists regarding the reconstruction of bone defects in Enneking III. This study aimed to use the finite element analysis (FEA) method to clarify (1) the utility of reconstructing the pelvis Enneking III region and (2) the optimal approach for this reconstruction. Methods FEA models were generated for three types of Enneking III defects in the pelvis, replacing all the defect areas in region III with a sizable solid box for topology optimization (TO). Based on the defect location and TO results, three reconstruction schemes were designed for each type of defect. We subsequently conducted simulations of static FEA under natural walking loads using ANSYS software (version 2022R1, Canonsburg, Pennsylvania, USA). Results Compared with Scheme A, reconstruction of the Enneking III region (Schemes B and C) led to a more uniform stress distribution and lower peak stress in the pelvis. Moreover, prostheses and screws exhibit decreased peak stress and deformation, with complex reconstruction schemes (C) outperforming simpler ones (B). Conclusions The FEA results suggest that reconstructing Enneking Zone III defects improves stress distribution and reduces peak stress in the pelvis compared to non-reconstruction, potentially enhancing stability and reducing fracture risks. Complex reconstruction schemes involving more contralateral pelvis regions demonstrate superior biomechanical performance. However, clinical decisions should be individualized, integrating biomechanical insights with comprehensive patient-specific factors.https://doi.org/10.1186/s13018-025-05500-0Pelvis bone tumorsEnneking III defectsOptimal reconstruction strategyFinite element analysisTopology optimization |
| spellingShingle | Jiazhuang Zhu Jianping Hu Kunpeng Zhu Xiaolong Ma Zhen Huang Chunlin Zhang Exploring the optimal reconstruction strategy for Enneking III defects in pelvis bone tumors: a finite element analysis Journal of Orthopaedic Surgery and Research Pelvis bone tumors Enneking III defects Optimal reconstruction strategy Finite element analysis Topology optimization |
| title | Exploring the optimal reconstruction strategy for Enneking III defects in pelvis bone tumors: a finite element analysis |
| title_full | Exploring the optimal reconstruction strategy for Enneking III defects in pelvis bone tumors: a finite element analysis |
| title_fullStr | Exploring the optimal reconstruction strategy for Enneking III defects in pelvis bone tumors: a finite element analysis |
| title_full_unstemmed | Exploring the optimal reconstruction strategy for Enneking III defects in pelvis bone tumors: a finite element analysis |
| title_short | Exploring the optimal reconstruction strategy for Enneking III defects in pelvis bone tumors: a finite element analysis |
| title_sort | exploring the optimal reconstruction strategy for enneking iii defects in pelvis bone tumors a finite element analysis |
| topic | Pelvis bone tumors Enneking III defects Optimal reconstruction strategy Finite element analysis Topology optimization |
| url | https://doi.org/10.1186/s13018-025-05500-0 |
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