Stress Distribution and Stability Evaluation of Difference Number  of Screws for Treating Tibia Transverse Fracture: Analysis on  Patient-Specific Data

Muhammad Khairul Asyraf Suaimi; Amir Mustakim Ab Rashid; Ahmad Kafrawi Nasution; Gan Hong Seng; Ng Bing Wui; Muhammad Hanif Ramlee

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Stress Distribution and Stability Evaluation of Difference Number of Screws for Treating Tibia Transverse Fracture: Analysis on Patient-Specific Data

Author: Muhammad Khairul Asyraf Suaimi ¹ ; Amir Mustakim Ab Rashid ¹ ; Ahmad Kafrawi Nasution ² ; Gan Hong Seng ³ ; Ng Bing Wui ⁴ ; Muhammad Hanif Ramlee ¹
Author Information

1. Medical Devices and Technology Centre (MEDiTEC), Institute for Human Centered Engineering (iHumEn), Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia&Bioinspired Device and Tissue Engineering (BIOINSPIRA) Research Group, School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
2. Department of Mechanical Engineering, Faculty of Engineering, Muhammadiyah University of Riau, Pekanbaru, Indonesia
3. Department of Data Science, Universiti Malaysia Kelantan, 16100 UMK City Campus Pengkala Chepa, Kelantan, Malaysia
4. Department of Orthopaedics, Hospital Pakar Kanak-Kanak, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur
Publication Type:Journal Article
Keywords: Number of screws, Tibia plate, Finite element, Biomechanics, Transverse fracture
From:Malaysian Journal of Medicine and Health Sciences 2022;18(No.3):17-23
CountryMalaysia
Language:English
Abstract: Introduction: Screws placement may influence the stress distribution and stability of the plate and bone. Implant failures are normally happened in clinical practise when inappropriate number of screws is implemented. Therefore, intensive investigations are needed to provide additional quantitative data on the use of different number of screws. Therefore, this study was conducted to investigate the biomechanical performance of different number of screws configurations on Locking compression plate (LCP) assembly when treating transverse fractures of the tibia bone. Methods: Finite element method was used to simulate tibia bone fracture treated with LCP in standing phase simulation. To accomplish this, a three-dimensional tibia model was reconstructed using CT dataset images. 11 holes of LCP and 36mm of locking screws were developed using SolidWorks software. From this study, there are three models in total have been developed with different number of screws and screw placements. A diaphysis transverse tibia fracture of 4 mm was constructed. Results: In terms of stress distribution, all configurations provide sufficient stress and do not exceeding the yield strength of that material. Conclusion: In conclusion, eight numbers of screws were the optimum configurations in order to provide ideal stability to the bone with displacement of 0.37 mm and 0.91 mm at plate and bone, respectively.
Full text:11.2022my1262.pdf