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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 7 Maximum force values of each vertebral body of the strategic screw system under 7 working conditions.

Work conditionT12L1L2L3L4L5
Upright12.32813.467.58796.74433.630710.813
Forward flexion59.75105.1296.11435.845106.04165.08
Backward extension60.463104.1193.71437.514103.9163.94
Left lateral flexion88.28799.60690.76532.56394.484110.59
Right lateral flexion98.279101.63100.1336.20799.595109.74
Left axial rotation48.42525.27243.91518.825.13632.186
Right axial rotation48.40425.1743.90218.8125.14832.181
L – lumbar vertebra; T – thoracic vertebra.

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750