Biomechanical investigation of the hybrid modified cortical bone screw–pedicle screw fixation technique: Finite-element analysis
BackgroundHybrid fixation techniques including the both modified cortical bone trajectory (MCBT) and traditional trajectory (TT) at the L4 and L5 lumbar segment are firstly proposed by our team. Therefore, the purpose of this study is to evaluate and provide specific biomechanical data of the hybrid...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2022-07-01
|
| Series: | Frontiers in Surgery |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fsurg.2022.911742/full |
| _version_ | 1811294357987262464 |
|---|---|
| author | Alafate Kahaer Xieraili Maimaiti Julaiti Maitirouzi Shuiquan Wang Wenjie Shi Nueraihemaiti Abuduwaili Zhihao Zhou Dongshan Liu Abulikemu Maimaiti Paerhati Rexiti |
| author_facet | Alafate Kahaer Xieraili Maimaiti Julaiti Maitirouzi Shuiquan Wang Wenjie Shi Nueraihemaiti Abuduwaili Zhihao Zhou Dongshan Liu Abulikemu Maimaiti Paerhati Rexiti |
| author_sort | Alafate Kahaer |
| collection | DOAJ |
| description | BackgroundHybrid fixation techniques including the both modified cortical bone trajectory (MCBT) and traditional trajectory (TT) at the L4 and L5 lumbar segment are firstly proposed by our team. Therefore, the purpose of this study is to evaluate and provide specific biomechanical data of the hybrid fixation techniques including the MCBT and TT.MethodsFour human cadaveric specimens were from the anatomy laboratory of Xinjiang Medical University. Four finite-element (FE) models of the L4–L5 lumbar spine were generated. For each of them, four implanted models with the following fixations were established: TT-TT (TT screw at the cranial and caudal level), MCBT-MCBT (MCBT screw at the cranial and caudal level), hybrid MCBT-TT (MCBT screw at the cranial level and TT screw at the caudal level), and TT-MCBT (TT screw at the cranial level and MCBT screw at the caudal level). A 400-N compressive load with 7.5 N/m moments was applied to simulate flexion, extension, lateral bending, and rotation, respectively. The range of motion (ROM) of the L4–L5 segment and the posterior fixation, the von Mises stress of the intervertebral disc, and the posterior fixation were compared.ResultsCompared to the TT-TT group, the MCBT-TT showed a significant lower ROM of the L4–L5 segment (p ≤ 0.009), lower ROM of the posterior fixation (p < 0.001), lower intervertebral disc stress (p < 0.001), and lower posterior fixation stress (p ≤ 0.041). TT-MCBT groups showed a significant lower ROM of the L4–L5 segment (p ≤ 0.012), lower ROM of the posterior fixation (p < 0.001), lower intervertebral disc stress (p < 0.001), and lower posterior fixation stress (p ≤ 0.038).ConclusionsThe biomechanical properties of the hybrid MCBT-TT and TT-MCBT techniques at the L4–L5 segment are superior to that of stability MCBT-MCBT and TT-TT techniques, and feasibility needs further cadaveric study to verify. |
| first_indexed | 2024-04-13T05:16:13Z |
| format | Article |
| id | doaj.art-23519f34e660448abdce1e90d9bd0569 |
| institution | Directory Open Access Journal |
| issn | 2296-875X |
| language | English |
| last_indexed | 2024-04-13T05:16:13Z |
| publishDate | 2022-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Surgery |
| spelling | doaj.art-23519f34e660448abdce1e90d9bd05692022-12-22T03:00:53ZengFrontiers Media S.A.Frontiers in Surgery2296-875X2022-07-01910.3389/fsurg.2022.911742911742Biomechanical investigation of the hybrid modified cortical bone screw–pedicle screw fixation technique: Finite-element analysisAlafate Kahaer0Xieraili Maimaiti1Julaiti Maitirouzi2Shuiquan Wang3Wenjie Shi4Nueraihemaiti Abuduwaili5Zhihao Zhou6Dongshan Liu7Abulikemu Maimaiti8Paerhati Rexiti9Department of Spine Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, ChinaDepartment of Spine Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, ChinaCollege of Mechanical Engineering, Xinjiang University, Urumqi, ChinaDepartment of Anatomy, College of Basic Medicine, Xinjiang Medical University, Urumqi, ChinaFirst Clinical Medical College, Xinjiang Medical University, Urumqi, ChinaDepartment of Imaging Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, ChinaDepartment of Spine Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, ChinaDepartment of Spine Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, ChinaDepartment of Spine Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, ChinaDepartment of Spine Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, ChinaBackgroundHybrid fixation techniques including the both modified cortical bone trajectory (MCBT) and traditional trajectory (TT) at the L4 and L5 lumbar segment are firstly proposed by our team. Therefore, the purpose of this study is to evaluate and provide specific biomechanical data of the hybrid fixation techniques including the MCBT and TT.MethodsFour human cadaveric specimens were from the anatomy laboratory of Xinjiang Medical University. Four finite-element (FE) models of the L4–L5 lumbar spine were generated. For each of them, four implanted models with the following fixations were established: TT-TT (TT screw at the cranial and caudal level), MCBT-MCBT (MCBT screw at the cranial and caudal level), hybrid MCBT-TT (MCBT screw at the cranial level and TT screw at the caudal level), and TT-MCBT (TT screw at the cranial level and MCBT screw at the caudal level). A 400-N compressive load with 7.5 N/m moments was applied to simulate flexion, extension, lateral bending, and rotation, respectively. The range of motion (ROM) of the L4–L5 segment and the posterior fixation, the von Mises stress of the intervertebral disc, and the posterior fixation were compared.ResultsCompared to the TT-TT group, the MCBT-TT showed a significant lower ROM of the L4–L5 segment (p ≤ 0.009), lower ROM of the posterior fixation (p < 0.001), lower intervertebral disc stress (p < 0.001), and lower posterior fixation stress (p ≤ 0.041). TT-MCBT groups showed a significant lower ROM of the L4–L5 segment (p ≤ 0.012), lower ROM of the posterior fixation (p < 0.001), lower intervertebral disc stress (p < 0.001), and lower posterior fixation stress (p ≤ 0.038).ConclusionsThe biomechanical properties of the hybrid MCBT-TT and TT-MCBT techniques at the L4–L5 segment are superior to that of stability MCBT-MCBT and TT-TT techniques, and feasibility needs further cadaveric study to verify.https://www.frontiersin.org/articles/10.3389/fsurg.2022.911742/fulltraditional trajectorymodified cortical bone trajectoryhybrid fixation technique3-dimensional finite-element analysislumbar spine |
| spellingShingle | Alafate Kahaer Xieraili Maimaiti Julaiti Maitirouzi Shuiquan Wang Wenjie Shi Nueraihemaiti Abuduwaili Zhihao Zhou Dongshan Liu Abulikemu Maimaiti Paerhati Rexiti Biomechanical investigation of the hybrid modified cortical bone screw–pedicle screw fixation technique: Finite-element analysis Frontiers in Surgery traditional trajectory modified cortical bone trajectory hybrid fixation technique 3-dimensional finite-element analysis lumbar spine |
| title | Biomechanical investigation of the hybrid modified cortical bone screw–pedicle screw fixation technique: Finite-element analysis |
| title_full | Biomechanical investigation of the hybrid modified cortical bone screw–pedicle screw fixation technique: Finite-element analysis |
| title_fullStr | Biomechanical investigation of the hybrid modified cortical bone screw–pedicle screw fixation technique: Finite-element analysis |
| title_full_unstemmed | Biomechanical investigation of the hybrid modified cortical bone screw–pedicle screw fixation technique: Finite-element analysis |
| title_short | Biomechanical investigation of the hybrid modified cortical bone screw–pedicle screw fixation technique: Finite-element analysis |
| title_sort | biomechanical investigation of the hybrid modified cortical bone screw pedicle screw fixation technique finite element analysis |
| topic | traditional trajectory modified cortical bone trajectory hybrid fixation technique 3-dimensional finite-element analysis lumbar spine |
| url | https://www.frontiersin.org/articles/10.3389/fsurg.2022.911742/full |
| work_keys_str_mv | AT alafatekahaer biomechanicalinvestigationofthehybridmodifiedcorticalbonescrewpediclescrewfixationtechniquefiniteelementanalysis AT xierailimaimaiti biomechanicalinvestigationofthehybridmodifiedcorticalbonescrewpediclescrewfixationtechniquefiniteelementanalysis AT julaitimaitirouzi biomechanicalinvestigationofthehybridmodifiedcorticalbonescrewpediclescrewfixationtechniquefiniteelementanalysis AT shuiquanwang biomechanicalinvestigationofthehybridmodifiedcorticalbonescrewpediclescrewfixationtechniquefiniteelementanalysis AT wenjieshi biomechanicalinvestigationofthehybridmodifiedcorticalbonescrewpediclescrewfixationtechniquefiniteelementanalysis AT nueraihemaitiabuduwaili biomechanicalinvestigationofthehybridmodifiedcorticalbonescrewpediclescrewfixationtechniquefiniteelementanalysis AT zhihaozhou biomechanicalinvestigationofthehybridmodifiedcorticalbonescrewpediclescrewfixationtechniquefiniteelementanalysis AT dongshanliu biomechanicalinvestigationofthehybridmodifiedcorticalbonescrewpediclescrewfixationtechniquefiniteelementanalysis AT abulikemumaimaiti biomechanicalinvestigationofthehybridmodifiedcorticalbonescrewpediclescrewfixationtechniquefiniteelementanalysis AT paerhatirexiti biomechanicalinvestigationofthehybridmodifiedcorticalbonescrewpediclescrewfixationtechniquefiniteelementanalysis |