TY - JOUR
T1 - Finite element method-based study for effect of adult degenerative scoliosis on the spinal vibration characteristics
AU - Xu, Ming
AU - Yang, James
AU - Lieberman, Isador
AU - Haddas, Ram
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/5/1
Y1 - 2017/5/1
N2 - Finite element analysis was used to investigate the responses of five healthy subjects and five adult degenerative scoliosis (ADS) subjects to cyclic vibration. The dynamic responses of the healthy and scoliotic spines to the sinusoidal cyclic vibrations have been investigated in previous studies by simulation or experimental approaches. However, no simulation or experimental results were available for the ADS subjects. The effect of the ADS on the vibrational characteristics of spines remained unknown. The objective of this study was to compare differences of the dynamic responses to the cyclic vibration input between the healthy subjects and subjects with ADS. Based on the simulations results in this study, the scoliotic spines are more sensitive to the cyclic vibrations than the healthy spines. More resonant frequencies were predicted in the scoliotic spines than the healthy spines. The scoliotic deformity in the spine was to make the vibrational response of the spine significantly more complex at the apical scoliotic region. This study suggested that ADS could severely increase spinal response to the cyclic vibrations, which could potentially lead to further scoliotic deformity in the spine.
AB - Finite element analysis was used to investigate the responses of five healthy subjects and five adult degenerative scoliosis (ADS) subjects to cyclic vibration. The dynamic responses of the healthy and scoliotic spines to the sinusoidal cyclic vibrations have been investigated in previous studies by simulation or experimental approaches. However, no simulation or experimental results were available for the ADS subjects. The effect of the ADS on the vibrational characteristics of spines remained unknown. The objective of this study was to compare differences of the dynamic responses to the cyclic vibration input between the healthy subjects and subjects with ADS. Based on the simulations results in this study, the scoliotic spines are more sensitive to the cyclic vibrations than the healthy spines. More resonant frequencies were predicted in the scoliotic spines than the healthy spines. The scoliotic deformity in the spine was to make the vibrational response of the spine significantly more complex at the apical scoliotic region. This study suggested that ADS could severely increase spinal response to the cyclic vibrations, which could potentially lead to further scoliotic deformity in the spine.
KW - Adult degenerative scoliosis
KW - Finite element analysis
KW - Healthy spines whole-body vibration
KW - Resonant amplitude
KW - Resonant frequency
UR - http://www.scopus.com/inward/record.url?scp=85015907645&partnerID=8YFLogxK
U2 - 10.1016/j.compbiomed.2017.03.018
DO - 10.1016/j.compbiomed.2017.03.018
M3 - Article
C2 - 28342408
AN - SCOPUS:85015907645
SN - 0010-4825
VL - 84
SP - 53
EP - 58
JO - Computers in Biology and Medicine
JF - Computers in Biology and Medicine
ER -