Stability Analysis of Plate—Screw Fixation for Femoral Midshaft Fractures
An understanding of the biomechanical characteristics and configuration of flexible and locked plating in order to provide balance stability and flexibility of implant fixation will help to construct and promote fast bone healing. The relationship between applied loading and implantation configurati...
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| Format: | Article |
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MDPI AG
2023-08-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/17/5958 |
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| author | Izzawati Basirom Ruslizam Daud Muhammad Farzik Ijaz Mohd Afendi Rojan Khairul Salleh Basaruddin |
| author_facet | Izzawati Basirom Ruslizam Daud Muhammad Farzik Ijaz Mohd Afendi Rojan Khairul Salleh Basaruddin |
| author_sort | Izzawati Basirom |
| collection | DOAJ |
| description | An understanding of the biomechanical characteristics and configuration of flexible and locked plating in order to provide balance stability and flexibility of implant fixation will help to construct and promote fast bone healing. The relationship between applied loading and implantation configuration for best bone healing is still under debate. This study aims to investigate the relationship between implant strength, working length, and interfragmentary strain (εIFM) on implant stability for femoral midshaft transverse fractures. The transverse fracture was fixed with a fragment locking compression plate (LCP) system. Finite element analysis was performed and subsequently characterised based on compression loading (600 N up to 900 N) and screw designs (conventional and locking) with different penetration depths (unicortical and bicortical). Strain theory was used to evaluate the stability of the model. The correlation of screw configuration with screw type shows a unicortical depth for both types (<i>p</i> < 0.01) for 700 N and 800 N loads and <i>(p</i> < 0.05) for configurations 134 and 124. Interfragmentary strain affected only the 600 N load (<i>p</i> < 0.01) for the bicortical conventional type (group BC), and the screw configurations that were influenced were 1234 and 123 (<i>p</i> < 0.05). The low steepness of the slope indicates the least εIFM for the corresponding biomechanical characteristic in good-quality stability. A strain value of ≤2% promotes callus formation and is classified as absolute stability, which is the minimum required value for the induction of callus and the maximum value that allows bony bridging. The outcomes have provided the correlation of screw configuration in femoral midshaft transverse fracture implantation which is important to promote essential primary stability. |
| first_indexed | 2024-03-10T23:18:47Z |
| format | Article |
| id | doaj.art-a91647942fc74426a450d239adfa5481 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T23:18:47Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-a91647942fc74426a450d239adfa54812023-11-19T08:28:18ZengMDPI AGMaterials1996-19442023-08-011617595810.3390/ma16175958Stability Analysis of Plate—Screw Fixation for Femoral Midshaft FracturesIzzawati Basirom0Ruslizam Daud1Muhammad Farzik Ijaz2Mohd Afendi Rojan3Khairul Salleh Basaruddin4Fracture and Damage Mechanics (FDM), Faculty of Mechanical Engineering Technology, University Malaysia Perlis, Arau 02600, Perlis, MalaysiaFracture and Damage Mechanics (FDM), Faculty of Mechanical Engineering Technology, University Malaysia Perlis, Arau 02600, Perlis, MalaysiaMechanical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi ArabiaFracture and Damage Mechanics (FDM), Faculty of Mechanical Engineering Technology, University Malaysia Perlis, Arau 02600, Perlis, MalaysiaFracture and Damage Mechanics (FDM), Faculty of Mechanical Engineering Technology, University Malaysia Perlis, Arau 02600, Perlis, MalaysiaAn understanding of the biomechanical characteristics and configuration of flexible and locked plating in order to provide balance stability and flexibility of implant fixation will help to construct and promote fast bone healing. The relationship between applied loading and implantation configuration for best bone healing is still under debate. This study aims to investigate the relationship between implant strength, working length, and interfragmentary strain (εIFM) on implant stability for femoral midshaft transverse fractures. The transverse fracture was fixed with a fragment locking compression plate (LCP) system. Finite element analysis was performed and subsequently characterised based on compression loading (600 N up to 900 N) and screw designs (conventional and locking) with different penetration depths (unicortical and bicortical). Strain theory was used to evaluate the stability of the model. The correlation of screw configuration with screw type shows a unicortical depth for both types (<i>p</i> < 0.01) for 700 N and 800 N loads and <i>(p</i> < 0.05) for configurations 134 and 124. Interfragmentary strain affected only the 600 N load (<i>p</i> < 0.01) for the bicortical conventional type (group BC), and the screw configurations that were influenced were 1234 and 123 (<i>p</i> < 0.05). The low steepness of the slope indicates the least εIFM for the corresponding biomechanical characteristic in good-quality stability. A strain value of ≤2% promotes callus formation and is classified as absolute stability, which is the minimum required value for the induction of callus and the maximum value that allows bony bridging. The outcomes have provided the correlation of screw configuration in femoral midshaft transverse fracture implantation which is important to promote essential primary stability.https://www.mdpi.com/1996-1944/16/17/5958Implant stabilityinterfragmentary straintransverse fracturescrew configuration |
| spellingShingle | Izzawati Basirom Ruslizam Daud Muhammad Farzik Ijaz Mohd Afendi Rojan Khairul Salleh Basaruddin Stability Analysis of Plate—Screw Fixation for Femoral Midshaft Fractures Materials Implant stability interfragmentary strain transverse fracture screw configuration |
| title | Stability Analysis of Plate—Screw Fixation for Femoral Midshaft Fractures |
| title_full | Stability Analysis of Plate—Screw Fixation for Femoral Midshaft Fractures |
| title_fullStr | Stability Analysis of Plate—Screw Fixation for Femoral Midshaft Fractures |
| title_full_unstemmed | Stability Analysis of Plate—Screw Fixation for Femoral Midshaft Fractures |
| title_short | Stability Analysis of Plate—Screw Fixation for Femoral Midshaft Fractures |
| title_sort | stability analysis of plate screw fixation for femoral midshaft fractures |
| topic | Implant stability interfragmentary strain transverse fracture screw configuration |
| url | https://www.mdpi.com/1996-1944/16/17/5958 |
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