15 June 2020 : Clinical Research
Comparative Three-Dimensional Finite Element Analysis of 4 Kinds of Pedicle Screw Schemes for Treatment of Adult Degenerative Scoliosis
Yang Zhou1ABE, Daqi Xin2CD, Zhuoting Lei3C, Yuan Zuo4CD, Yan Zhao4EG*DOI: 10.12659/MSM.922050
Med Sci Monit 2020; 26:e922050
Table 5 Maximum force values of each vertebral body of the interval screw system under 7 working conditions.
| Work condition | T12 | L1 | L2 | L3 | L4 | L5 |
|---|---|---|---|---|---|---|
| Upright | 12.502 | 15.54 | 26.484 | 0.39739 | 2.0029 | 10.27 |
| Forward flexion | 57.259 | 92.638 | 276.34 | 1.7109 | 87.845 | 160.03 |
| Backward extension | 57.899 | 91.527 | 280.43 | 1.7149 | 84.902 | 158.13 |
| Left lateral flexion | 82.728 | 77.862 | 154.79 | 0.50366 | 90.264 | 109.13 |
| Right lateral flexion | 92.01 | 82.785 | 177.75 | 0.53707 | 96.997 | 108.4 |
| Left axial rotation | 44.103 | 26.624 | 98.844 | 0.31245 | 33.852 | 26.666 |
| Right axial rotation | 44.088 | 26.556 | 98.836 | 0.31244 | 33.856 | 26.663 |
| L – lumbar vertebra; T – thoracic vertebra. | ||||||