Effects of ROI-C Cervical Implantation on Biomechanics of Cervical Vertebra
10.16156/j.1004-7220.2018.02.04
- VernacularTitle:ROI-C椎间融合器植入对颈椎生物力学的影响
- Author:
Yanmei SONG
1
;
Gaiping ZHAO
1
;
Pengxiang LI
1
;
Feiyi XIA
1
;
Ziqiang DONG
1
;
Houhai BI
1
;
Nanxin CHEN
1
;
Tong MA
2
;
Yihui TU
2
Author Information
1. School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology
2. Department of Orthopedic Surgery, Yangpu District Central Hospital
- Publication Type:Journal Article
- Keywords:
ROI-C interbody fusion cage;
autograft fusion with plate fixation;
lower cervical vertebra;
finite element analysis;
biomechanics
- From:
Journal of Medical Biomechanics
2018;33(2):E114-E120
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the influence of ROI-C cervical implantation in the C5-6 segment on the C3-7 range-of-motion (ROM), biomechanical properties of the intervertebral disc and the vertebral body, and the mode of force transmission. Methods Two types of surgeries, ROI-C implantation and autograft fusion with plate fixation, were considered to establish the finite element model of cervical C5-6 segment degeneration. The ROM of C3-7 during flexion, extension, lateral bending, and axial rotation, as well as stress distributions on the adjacent discs, vertebral body, and implanted devices under two procedures, were analyzed. Results ROI-C implantation had a relatively small influence on the ROM of the adjacent segment. The stress on the vertebral discs was reduced, but the stress on the vertebral body increased significantly, with the C5 vertebral body stress increasing by 251%. In the fusion surgery model, the ROM of the surgical segment was reduced by 86%-91%, while the ROM of the adjacent segments and the stress on the vertebral disc and vertebral body increased significantly. Conclusions ROI-C implantation surgery has a relatively small influence on the cervical ROM and the intervertebral disc, and it has a greater impact on the vertebral body. The research findings provide a theoretical basis for the design of operation plans and clinical studies on ROI-C implantation and autograft fusion with plate fixation.
