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 7 Maximum force values of each vertebral body of the strategic screw system under 7 working conditions.
| Work condition | T12 | L1 | L2 | L3 | L4 | L5 |
|---|---|---|---|---|---|---|
| Upright | 12.328 | 13.46 | 7.5879 | 6.7443 | 3.6307 | 10.813 |
| Forward flexion | 59.75 | 105.12 | 96.114 | 35.845 | 106.04 | 165.08 |
| Backward extension | 60.463 | 104.11 | 93.714 | 37.514 | 103.9 | 163.94 |
| Left lateral flexion | 88.287 | 99.606 | 90.765 | 32.563 | 94.484 | 110.59 |
| Right lateral flexion | 98.279 | 101.63 | 100.13 | 36.207 | 99.595 | 109.74 |
| Left axial rotation | 48.425 | 25.272 | 43.915 | 18.8 | 25.136 | 32.186 |
| Right axial rotation | 48.404 | 25.17 | 43.902 | 18.81 | 25.148 | 32.181 |
| L – lumbar vertebra; T – thoracic vertebra. | ||||||