Biomechanical finite element analysis of vertebral column resection and posterior unilateral vertebral resection and reconstruction osteotomy
Abstract Background Regarding the repair of vertebral compression fractures, there is a lack of adequate biomechanical verification as to whether only half of the vertebral body and the upper and lower intervertebral discs affect spinal biomechanics; there also remains debate as to the appropriate l...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2021-01-01
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| Series: | Journal of Orthopaedic Surgery and Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s13018-021-02237-4 |
| _version_ | 1811279543273521152 |
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| author | Ye Han Xiaodong Wang Jincheng Wu Hanpeng Xu Zepei Zhang Kepeng Li Yang Song Jun Miao |
| author_facet | Ye Han Xiaodong Wang Jincheng Wu Hanpeng Xu Zepei Zhang Kepeng Li Yang Song Jun Miao |
| author_sort | Ye Han |
| collection | DOAJ |
| description | Abstract Background Regarding the repair of vertebral compression fractures, there is a lack of adequate biomechanical verification as to whether only half of the vertebral body and the upper and lower intervertebral discs affect spinal biomechanics; there also remains debate as to the appropriate length of fixation. Methods A model of old vertebral compression fractures with kyphosis was established based on CT data. Vertebral column resection (VCR) and posterior unilateral vertebral resection and reconstruction (PUVCR) were performed at T12; long- and short-segment fixation methods were applied, and we analyzed biomechanical changes after surgery. Results Range of motion (ROM) decreased in all fixed models, with lumbar VCR decreasing the most and short posterior unilateral vertebral resection and reconstruction (SPUVCR) decreasing the least; in the long posterior unilateral vertebral resection and reconstruction (LPUVCR) model, the internal fixation system produced the maximum VMS stress of 213.25 mPa in a lateral bending motion and minimum stress of 40.22 mPa in a lateral bending motion in the SVCR. Conclusion There was little difference in thoracolumbar ROM between PUVCR and VCR models, while thoracolumbar ROM was smaller in long-segment fixation than in short-segment fixation. In all models, the VMS was most significant at the screw-rod junction and greatest at the ribcage–vertebral body interface, partly explaining the high probability of internal fixation failure and prosthesis migration in these two positions. |
| first_indexed | 2024-04-13T00:56:30Z |
| format | Article |
| id | doaj.art-5d2a626a3d07461abf91e3be19a08960 |
| institution | Directory Open Access Journal |
| issn | 1749-799X |
| language | English |
| last_indexed | 2024-04-13T00:56:30Z |
| publishDate | 2021-01-01 |
| publisher | BMC |
| record_format | Article |
| series | Journal of Orthopaedic Surgery and Research |
| spelling | doaj.art-5d2a626a3d07461abf91e3be19a089602022-12-22T03:09:38ZengBMCJournal of Orthopaedic Surgery and Research1749-799X2021-01-011611710.1186/s13018-021-02237-4Biomechanical finite element analysis of vertebral column resection and posterior unilateral vertebral resection and reconstruction osteotomyYe Han0Xiaodong Wang1Jincheng Wu2Hanpeng Xu3Zepei Zhang4Kepeng Li5Yang Song6Jun Miao7Graduate School, Tianjin Medical UniversityGraduate School, Tianjin Medical UniversityGraduate School, Tianjin Medical UniversityGraduate School, Tianjin Medical UniversityDepartment of Orthopaedics, Tianjin HospitalGraduate School, Tianjin Medical UniversityGraduate School, Tianjin Medical UniversityDepartment of Orthopaedics, Tianjin HospitalAbstract Background Regarding the repair of vertebral compression fractures, there is a lack of adequate biomechanical verification as to whether only half of the vertebral body and the upper and lower intervertebral discs affect spinal biomechanics; there also remains debate as to the appropriate length of fixation. Methods A model of old vertebral compression fractures with kyphosis was established based on CT data. Vertebral column resection (VCR) and posterior unilateral vertebral resection and reconstruction (PUVCR) were performed at T12; long- and short-segment fixation methods were applied, and we analyzed biomechanical changes after surgery. Results Range of motion (ROM) decreased in all fixed models, with lumbar VCR decreasing the most and short posterior unilateral vertebral resection and reconstruction (SPUVCR) decreasing the least; in the long posterior unilateral vertebral resection and reconstruction (LPUVCR) model, the internal fixation system produced the maximum VMS stress of 213.25 mPa in a lateral bending motion and minimum stress of 40.22 mPa in a lateral bending motion in the SVCR. Conclusion There was little difference in thoracolumbar ROM between PUVCR and VCR models, while thoracolumbar ROM was smaller in long-segment fixation than in short-segment fixation. In all models, the VMS was most significant at the screw-rod junction and greatest at the ribcage–vertebral body interface, partly explaining the high probability of internal fixation failure and prosthesis migration in these two positions.https://doi.org/10.1186/s13018-021-02237-4Old vertebral compression fractureBiomechanicsFinite element analysisSpinal osteotomy |
| spellingShingle | Ye Han Xiaodong Wang Jincheng Wu Hanpeng Xu Zepei Zhang Kepeng Li Yang Song Jun Miao Biomechanical finite element analysis of vertebral column resection and posterior unilateral vertebral resection and reconstruction osteotomy Journal of Orthopaedic Surgery and Research Old vertebral compression fracture Biomechanics Finite element analysis Spinal osteotomy |
| title | Biomechanical finite element analysis of vertebral column resection and posterior unilateral vertebral resection and reconstruction osteotomy |
| title_full | Biomechanical finite element analysis of vertebral column resection and posterior unilateral vertebral resection and reconstruction osteotomy |
| title_fullStr | Biomechanical finite element analysis of vertebral column resection and posterior unilateral vertebral resection and reconstruction osteotomy |
| title_full_unstemmed | Biomechanical finite element analysis of vertebral column resection and posterior unilateral vertebral resection and reconstruction osteotomy |
| title_short | Biomechanical finite element analysis of vertebral column resection and posterior unilateral vertebral resection and reconstruction osteotomy |
| title_sort | biomechanical finite element analysis of vertebral column resection and posterior unilateral vertebral resection and reconstruction osteotomy |
| topic | Old vertebral compression fracture Biomechanics Finite element analysis Spinal osteotomy |
| url | https://doi.org/10.1186/s13018-021-02237-4 |
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