Abstract
Objective: To study the biomechanical stability of a new screw-setting technique, we used cortical bone trajectory (CBT) in injury vertebra relative to the traditional pedicle screw-setting technique.
Methods: We used thoracolumbar spine CT data of a healthy adult male volunteer and engineering data of internal fixation system of spine to simulate intact state, burst fracture state and combination of three kinds of internal fixation state of the spine: (1) 4 pedicle screws cross segment and 2 rods (P4); (2) 4 pedicle screws, 2 CBT screws at injured vertebrae and 2 rods (P4C2); (3) 6 pedicle screws and 2 rods (P6). Then we compared differences of the stability of the corresponding fixed system and stress distribution of fixation models of three groups above.
Results: The total deformation of all nodes of the fracture spine model of P4C2 was less than the fracture spine model node group of P4 and larger than the fracture spine model node group of P6 during normal weight status, rotation(right), bending forward, stretch and lateral bending(right) state. The equivalent stress of all nodes of internal fixation system of P4C2 was smaller than the fixation model node group of P4 and bigger than the fixation model node group of P6 during normal weight status, rotation(right), bending forward, stretch and lateral bending(right) state.
Conclusion: CBT technology for injured vertebra fixation could provide more stability of the vertebral body and reduce stress concentration of internal fixation system compared to the traditional P4 fixation.
Keywords
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Woodall Jr., J.W.: Evidence for the treatment of thoracolumbar burst fractures. Curr. Orthop. Pract. 23(3), 188–192 (2012)
Canbek, U., Karapinar, L.: Posterior fixation of thoracolumbar burst fractures: Is it possible to protect one segment in the lumbar region? Eur. J. Orthop. Surg. Traumatol. 24(4), 459–465 (2014)
Gaines Jr., R.W.: The use of pedicle-screw internal fixation for the operative treatment of spinal disorders. Bone Joint Surg. 82-A(10), 1458–1476 (2000)
Ruf, M., Harms, J.: Pedicle screws in 1-and 2-year-old children: technique, complications, and effect on further growth. Spine 27(21), 460–466 (2002)
McCormack, T., Karaikovic, E., Gaines, R.W.: The load-sharing classification of spine fractures. Spine 19(15), 1741–1744 (1994)
Gelb, D., Ludwig, S.: Successful treatment of thoracolumbar fractures with short-segment pedicle instrumentation. J Spinal Disord. Tech. 23, 293–301 (2010)
Esses, S.I., Sachs, B.L., Dreyzin, V.: Complications associated with the technique of pedicle screw fixation. A selected survey of ABS members. Spine 18(15), 2231–2238 (1993)
Saita, K., Hoshino, Y., Kikkawa, I., et al.: Postlerior spinal shortening for paraplegia after vertebral collapse cause by osteopomsi. Spine 25(21), 2832–2835 (2000)
Santoni, B.G., Hynes, R.A., McGilvray, K.C., et al.: Cortical bone trajectory for lumbar pedicle screws. Spine J. 9, 366–373 (2009)
Matsukawa, K., Yato, Y.: Morphometric measurement of cortical bone trajectory for lumbar pedicle screw insertion using computed tomography. J. Spinal Disord. Tech. 26(6), 248–253 (2013)
Shih, S.-L., Chen, C.-S., Lin, H.-M., et al.: Effect of spacer diameter of the dynesys dynamic stabilization system on the biomechanics of the lumbar spine: a finite element analysis. J. Spinal Disord. Tech. 25(5), 140–149 (2012)
Ozgur, V., Mehmet, S.E., Levent, A., et al.: Biomechanical Evaluation of Syndesmotic Screw Position: a finite element analysis. J. Orthop. Trauma 28(4), 210–215 (2014)
Markolf, K.L.: Deformation of the thoracolumbar intervertebral joints in response to external load: a biomechanical study using autopsy material. J. Bone Join Surg. Am. 54(3), 511–533 (1972)
Wood, K.B., Li, W.: Management of thoracolumbar spine fractures. Spine J. 14, 145–164 (2014)
Perez-Orribo, L., Kalb, S., et al.: Biomechanics of lumbar cortical screw-rod fixation versus pedicle screw-rod fixation with and without interbody support. Spine 38(8), 635–641 (2013)
Acknowledgment
The work was supported by National Natural Science Foundation of China (61273024 and 61673226).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2017 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Wang, J., Gu, J., Zhao, J., Zhang, X., Hua, L., Zhou, C. (2017). Technology of Cortical Bone Trajectory on the Influence of Stability in Fixation of Burst Fracture of Thoracolumbar Spine: A Finite Element Analysis. In: Fei, M., Ma, S., Li, X., Sun, X., Jia, L., Su, Z. (eds) Advanced Computational Methods in Life System Modeling and Simulation. ICSEE LSMS 2017 2017. Communications in Computer and Information Science, vol 761. Springer, Singapore. https://doi.org/10.1007/978-981-10-6370-1_11
Download citation
DOI: https://doi.org/10.1007/978-981-10-6370-1_11
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-10-6369-5
Online ISBN: 978-981-10-6370-1
eBook Packages: Computer ScienceComputer Science (R0)