Finite element analysis was used to investigate the responses of five adult degenerative scoliosis (ADS) subjects to cyclic vibration before and after surgical alignment (SA). The dynamic responses of the healthy and presurgical scoliotic spines to the sinusoidal cyclic vibrations have been investigated in previous studies by computational and experimental approaches. However, no computational or experimental results were available for the pre- and postsurgical scoliosis subjects. The effect of the SA on the vibrational response of the postsurgical scoliosis subjects remained unknown. The objective of this study was to compare differences of the dynamic responses to the cyclic vibration input among the scoliotic spines for pre- and post-SA. Previous studies suggested that untreated scoliotic spines especially at the apical vertebrae are more sensitive to the vibration than spinal segments with normal anatomies. Results of this study showed that the SA was able to reduce the vibrational response of the scoliotic spines to the whole body vibrations (WBV) at the fused level while not significantly increase the response at the superior adjacent level, which suggested that SA is able to reduce the risk of further degeneration in the scoliotic spines.
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June 2019
Research-Article
The Effect of Surgical Alignment in Adult Scoliotic Spines on Axial Cyclic Vibration: A Finite Element Study
Ming Xu,
Ming Xu
Human-Centric Design Research Lab,
Department of Mechanical Engineering,
Texas Tech University,
Lubbock, TX 79401
e-mail: ming.xu@ttu.edu
Department of Mechanical Engineering,
Texas Tech University,
Lubbock, TX 79401
e-mail: ming.xu@ttu.edu
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James Yang,
James Yang
Fellow ASME
Human-Centric Design Research Lab,
Department of Mechanical Engineering,
Texas Tech University,
Lubbock, TX 79401
e-mail: james.yang@ttu.edu
Human-Centric Design Research Lab,
Department of Mechanical Engineering,
Texas Tech University,
Lubbock, TX 79401
e-mail: james.yang@ttu.edu
Search for other works by this author on:
Ram Haddas
Ram Haddas
Search for other works by this author on:
Ming Xu
Human-Centric Design Research Lab,
Department of Mechanical Engineering,
Texas Tech University,
Lubbock, TX 79401
e-mail: ming.xu@ttu.edu
Department of Mechanical Engineering,
Texas Tech University,
Lubbock, TX 79401
e-mail: ming.xu@ttu.edu
James Yang
Fellow ASME
Human-Centric Design Research Lab,
Department of Mechanical Engineering,
Texas Tech University,
Lubbock, TX 79401
e-mail: james.yang@ttu.edu
Human-Centric Design Research Lab,
Department of Mechanical Engineering,
Texas Tech University,
Lubbock, TX 79401
e-mail: james.yang@ttu.edu
Isador Lieberman
Ram Haddas
1Corresponding author.
Contributed by the Computers and Information Division of ASME for publication in the JOURNAL OF COMPUTING AND INFORMATION SCIENCE IN ENGINEERING. Manuscript received September 19, 2018; final manuscript received December 12, 2018; published online February 4, 2019. Assoc. Editor: Ashok V. Kumar.
J. Comput. Inf. Sci. Eng. Jun 2019, 19(2): 021006 (6 pages)
Published Online: February 4, 2019
Article history
Received:
September 19, 2018
Revised:
December 12, 2018
Citation
Xu, M., Yang, J., Lieberman, I., and Haddas, R. (February 4, 2019). "The Effect of Surgical Alignment in Adult Scoliotic Spines on Axial Cyclic Vibration: A Finite Element Study." ASME. J. Comput. Inf. Sci. Eng. June 2019; 19(2): 021006. https://doi.org/10.1115/1.4042326
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