15 June 2020>: Medical Technology
Comparative Three-Dimensional Finite Element Analysis of 4 Kinds of Pedicle Screw Schemes for Treatment of Adult Degenerative Scoliosis
Yang Zhou 1ABE , Daqi Xin 2CD , Zhuoting Lei 3C , Yuan Zuo 4CD* , Yan Zhao 4EG*DOI: 10.12659/MSM.922050
Med Sci Monit 2020; 26:e922050
Table 4 Maximum force values of each vertebral body of the full-segment screw system under 7 working conditions.
Work condition | T12 | L1 | L2 | L3 | L4 | L5 |
---|---|---|---|---|---|---|
Upright | 11.352 | 8.8407 | 23.322 | 4.6421 | 4.718 | 10.78 |
Forward flexion | 52.968 | 85.101 | 259.77 | 35.797 | 82.365 | 155.5 |
Backward extension | 52.523 | 83.705 | 257.1 | 97.161 | 84.25 | 156.75 |
Left lateral flexion | 61.531 | 63.217 | 123.04 | 98.032 | 74.676 | 108.62 |
Right lateral flexion | 65.698 | 67.799 | 134.38 | 40.229 | 78.727 | 108.08 |
Left axial rotation | 29.276 | 29.284 | 71.064 | 22.952 | 28.952 | 24.208 |
Right axial rotation | 29.258 | 29.281 | 71.054 | 22.952 | 28.953 | 24.206 |
L – lumbar vertebra; T – thoracic vertebra. |