The Load bearing analysis on Lumbosacral Disc in Pre-operative and Post-operative Thoracic Scoliosis Patient
DOI:
https://doi.org/10.32896/ajmedtech.v1n1.18-29Keywords:
Thoracic scoliosis, Lumbosacral disc, Finite element analysis, Vertebral alignment, Vertebral loadAbstract
Scoliosis is a musculoskeletal disorder seen all around the world. It affects both the alignment of the vertebra and intervertebral disc. Scoliosis can be treated conservatively with a cast and brace or surgically with spinal instrumentation. During planning for surgical instrumentation, several factors need to be considered. Among those, biomechanical changes in the non-scoliotic vertebrae and discs are important. This is vital in determining the future degenerative changes of the spine. For this reason, this study was conducted with a finite element model of the lumbosacral joint using CT scan files to find the total deformation and equivalent static strain of the lumbosacral disc between pre and post-operative thoracic scoliosis patient. From the results, it is evident that there is a biomechanical change in the lumbosacral disc and structural change in the vertebral alignment followed immediately after corrective surgery. The correction in the alignment of the scoliotic spine brings changes to the biomechanical functionality and load-bearing capacity of the lumbosacral intervertebral disc before and after surgery.
References
M. Damavandi, G. Dalleau, G. Stylianides, C.-H. Rivard and P. Allard, “Head and Trunk mass and center of mass position estimates in able-bodied and scoliotic girls,” Medical Engineering & Physics, vol. 35, no. 11, pp. 1607-1612, 2013. DOI: 10.1016/j.medengphy.2013.05.010
J.-Y. Park, G. D. Park, S.-G. Lee and J.-C. Lee, “The Effect of Scoliosis Angle on Center of Gravity Sway,” Journal of Physical Therapy Science, vol. 25, no. 12, pp. 1629-1631, 2013. DOI: 10.1589/jpts.25.1629
K. Hajizadeh, I. Gibson and L. G, “Developing a 3D Multi-Body Model of the Scoliotic Spine with Lateral Bending Motion for Comparison of Ribcage Flexibility,” International Journal of Advanced Design and Manufacturing Technology, vol. 6, no. 1, pp. 25-32, 2013. URL: http://admt.iaumajlesi.ac.ir/article_534824.html
Dr. Morris. (2015). Pelvic Discomfort in Pregnancy [Online]. Available: http://www.drmorris.com.au/pelvic-discomfort-in-pregnancy/. [Accessed 12 May 2021].
X. Gao, Q. Zhu and W. Gu, “An Anisotropic Multiphysics Model for Intervertebral Disk,” Journal of Applied Mechanics, vol. 83, no. 2, pp. 11-18, 2016. DOI: 10.1115/1.4031793
J. J. Pel, C. Spoor, A. Pool-Goudzwaard, G. Hoek van Dijke and C. Snijders, “Biomechanical Analysis of Reducing Sacroiliac Joint Shear Load by Optimization of Pelvic Muscle and Ligament Forces,” Annals of Biomedical Engineering, vol. 36, no. 3, pp. 415-424, 2008. DOI: 10.1007/s10439-007-9385-8
P. D. Trobisch, A. F. Samdani, J. Pahys and P. J. Cahill, “Postoperative trunk shift in Lenke 1 and 2 curves: how common is it? and analysis of risk factors,” European Spine Journal, vol. 20, no. 7, pp. 1137-1140, 2011. DOI: 10.1007/s00586-011-1820-8
D. C. Carvalho de Abreu, M. M. Gomes, H. A. Rocha de Santiago, C. F. P. d. S. Herrero, M. A. Porto and H. L. Aparecido Defino, “What is the influence of surgical treatment of adolescent idiopathic scoliosis on postural control?,” Gait Posture, vol. 36, no. 3, pp. 586-590, 2012. DOI: 10.1016/j.gaitpost.2012.05.019
A. Nohara, N. Kawakami, K. Seki, T. Tsuji, T. Ohara, T. Saito and K. Kawakami, “The Effects of Spinal Fusion on Lumbar Disc Degeneration in Patients with Adolescent Idiopathic Scoliosis: A Minimum 10-Year Follow-Up,” Spine Deformity, vol. 3, no. 5, pp. 462-468, 2015. DOI: 10.1016/j.jspd.2015.04.001
E. M. Mannen and D. E. Anderson, “Mechanical testing of the thoracic spine and related implants,” in Mechanical Testing of Orthopaedic Implants, Duxford, Woodhead Publishing, 2017, pp. 143-160. DOI: 10.1016/B978-0-08-100286-5.00008-1
T. Shimizu, L. G. Kenke, M. Cerpa, E. Beauchamp, L. Y. Carreon, C. I. Shaffrey, K. M. Cheung and M. G. Fehlings, “A Radiographic Analysis of Lumbar Fusion Status and Instrumentation Failure After Complex Adult Spinal Deformity Surgery With Spinopelvic Fixation: Two-Year Follow-up From the Scoli-Risk-1 Prospective Database,” Clinical Spine Surgery, vol. 33, no. 10, pp. 545-552, 2020. DOI: 10.1097/BSD.0000000000001008
H. Li and Z. Wang, “Intervertebral disc biomechanical analysis using the finite element modeling based on medical images,” Computerized Medical Imaging and Graphics, vol. 30, no. 6-7, pp. 363-370, 2006. DOI: 10.1016/j.compmedimag.2006.09.004
N. Homma, An Approach to Lumbar Vertebra Biomechanical Analysis Using the Finite Element Modeling Based on CT Images, Rijeka: InTech, 2011. URL: https://downloadmedicalbooks.files.wordpress.com/2011/08/theory_and_applications_of_ct_imaging_and_analysis.pdf
M. Palaniswamy, W. Y. Leong, K. H. Cheah and L. C. Yong, “Engineering concepts in analysing lumbosacral load in post-operative scoliotic patients,” Journal of Engineering Science and Technology, vol. 13, no. 4, pp. 1058-1069, 2018. URL: http://jestec.taylors.edu.my/Vol%2013%20issue%204%20April%202018/13_4_15.pdf
M. Karami, A. Maleki and K. Mazda, “Assessment of Coronal Radiographic Parameters of the Spine in the Treatment of Adolescent Idiopathic Scoliosis,” The Archives of Bone and Joint Surgery, vol. 4, no. 4, pp. 376-380, 2016. DOI: 10.22038/abjs.2016.7538
E. Ameri, H. Ghandhari, N. Nabizadeh and H. Hesarikia, “Natural history of coronal balance after spinal fusion in adolescent idiopathic scoliosis,” Journal of Research in Orthopedic Science, vol. 1, no. 2, 2014. URL: http://jros.iums.ac.ir/article-1-117-en.html
M. Palaniswamy and W. Y. Leong, “Evaluation on Thoracic Trunk Shift and Coronal balance in Post-Operative Scoliosis Patients,” ASM Science Journal, vol. 11, no. 1, pp. 1-8, 2018. URL: https://www.akademisains.gov.my/asmsj/article/evaluation-on-thoracic-trunk-shift-and-coronal-balance-in-post-operative-scoliosis-patients/
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