Stress Distribution of Different Pedicle Screw Insertion Techniques Following Single‐Segment TLIF: A Finite Element Analysis Study
Objectives At present, a variety of posterior lumbar internal fixation implantation methods have been developed, which makes it difficult for spine surgeons to choose. The stress distribution of the internal fixation system is one of the important indexes to evaluate these technologies. Common inser...
| 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.13671 |
| _version_ | 1797847291361492992 |
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| author | Simengge Yang Tianze Sun Liwen Zhang Menglin Cong Anyun Guo Dakai Liu Mingzhi Song |
| author_facet | Simengge Yang Tianze Sun Liwen Zhang Menglin Cong Anyun Guo Dakai Liu Mingzhi Song |
| author_sort | Simengge Yang |
| collection | DOAJ |
| description | Objectives At present, a variety of posterior lumbar internal fixation implantation methods have been developed, which makes it difficult for spine surgeons to choose. The stress distribution of the internal fixation system is one of the important indexes to evaluate these technologies. Common insertion technologies include Roy Camille, Magerl, Krag, AO, and Weinstein insertion techniques. This study aimed to compare the distribution of von Mises stresses in different screw fixation systems established by these insertion technologies. Methods Here, the three‐dimensional finite element (FE) method was selected to evaluate the postoperative stress distribution of internal fixation. Following different pedicle screw insertion techniques, five single‐segment transforaminal lumbar interbody fusion (TLIF) models were established after modeling and validation of the L1‐S1 vertebrae FE model. Results By analyzing the data, we found that stress concentration phenomenon was in all the models. Additionally, Roy‐Camille, Krag, AO, and Weinstein insertion techniques led to the great stress on lumbar vertebra, intervertebral disc, and screw‐rod fixation systems. Therefore, we hope that the results can provide ideas for clinical work and development of pedicle screws in the future. It is worth noting that flexion, unaffected side lateral bending, and affected side axial rotation should be limited for the patients with cages implanted. Conclusions Overall, our method obtained the results that Magerl insertion technique was the relatively safe approach for pedicle screw implantation due to its relatively dispersive stress in TLIF models. |
| first_indexed | 2024-04-09T18:08:58Z |
| format | Article |
| id | doaj.art-640d741267e64762a75cb6ec11c7e99f |
| institution | Directory Open Access Journal |
| issn | 1757-7853 1757-7861 |
| language | English |
| last_indexed | 2024-04-09T18:08:58Z |
| publishDate | 2023-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Orthopaedic Surgery |
| spelling | doaj.art-640d741267e64762a75cb6ec11c7e99f2023-04-14T04:21:20ZengWileyOrthopaedic Surgery1757-78531757-78612023-04-011541153116410.1111/os.13671Stress Distribution of Different Pedicle Screw Insertion Techniques Following Single‐Segment TLIF: A Finite Element Analysis StudySimengge Yang0Tianze Sun1Liwen Zhang2Menglin Cong3Anyun Guo4Dakai Liu5Mingzhi Song6Department of Orthopaedics The First Affiliated Hospital of Dalian Medical University Dalian ChinaDepartment of Orthopaedics The First Affiliated Hospital of Dalian Medical University Dalian ChinaDepartment of Orthopaedics The First Affiliated Hospital of Dalian Medical University Dalian ChinaDepartment of Orthopedics Qilu Hospital of Shandong University Jinan ChinaDepartment of Joint Trauma General Hospital of Shenzhen University Shenzhen ChinaDepartment of Orthopaedics The Second People's Hospital of Dalian Dalian ChinaDepartment of Orthopaedics The First Affiliated Hospital of Dalian Medical University Dalian ChinaObjectives At present, a variety of posterior lumbar internal fixation implantation methods have been developed, which makes it difficult for spine surgeons to choose. The stress distribution of the internal fixation system is one of the important indexes to evaluate these technologies. Common insertion technologies include Roy Camille, Magerl, Krag, AO, and Weinstein insertion techniques. This study aimed to compare the distribution of von Mises stresses in different screw fixation systems established by these insertion technologies. Methods Here, the three‐dimensional finite element (FE) method was selected to evaluate the postoperative stress distribution of internal fixation. Following different pedicle screw insertion techniques, five single‐segment transforaminal lumbar interbody fusion (TLIF) models were established after modeling and validation of the L1‐S1 vertebrae FE model. Results By analyzing the data, we found that stress concentration phenomenon was in all the models. Additionally, Roy‐Camille, Krag, AO, and Weinstein insertion techniques led to the great stress on lumbar vertebra, intervertebral disc, and screw‐rod fixation systems. Therefore, we hope that the results can provide ideas for clinical work and development of pedicle screws in the future. It is worth noting that flexion, unaffected side lateral bending, and affected side axial rotation should be limited for the patients with cages implanted. Conclusions Overall, our method obtained the results that Magerl insertion technique was the relatively safe approach for pedicle screw implantation due to its relatively dispersive stress in TLIF models.https://doi.org/10.1111/os.13671Finite Element AnalysisPedicle ScrewScrew and Rod SystemSpinal BiomechanicsStress |
| spellingShingle | Simengge Yang Tianze Sun Liwen Zhang Menglin Cong Anyun Guo Dakai Liu Mingzhi Song Stress Distribution of Different Pedicle Screw Insertion Techniques Following Single‐Segment TLIF: A Finite Element Analysis Study Orthopaedic Surgery Finite Element Analysis Pedicle Screw Screw and Rod System Spinal Biomechanics Stress |
| title | Stress Distribution of Different Pedicle Screw Insertion Techniques Following Single‐Segment TLIF: A Finite Element Analysis Study |
| title_full | Stress Distribution of Different Pedicle Screw Insertion Techniques Following Single‐Segment TLIF: A Finite Element Analysis Study |
| title_fullStr | Stress Distribution of Different Pedicle Screw Insertion Techniques Following Single‐Segment TLIF: A Finite Element Analysis Study |
| title_full_unstemmed | Stress Distribution of Different Pedicle Screw Insertion Techniques Following Single‐Segment TLIF: A Finite Element Analysis Study |
| title_short | Stress Distribution of Different Pedicle Screw Insertion Techniques Following Single‐Segment TLIF: A Finite Element Analysis Study |
| title_sort | stress distribution of different pedicle screw insertion techniques following single segment tlif a finite element analysis study |
| topic | Finite Element Analysis Pedicle Screw Screw and Rod System Spinal Biomechanics Stress |
| url | https://doi.org/10.1111/os.13671 |
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