Biomechanical effects of posterior pedicle fixation techniques on the adjacent segment for the treatment of thoracolumbar burst fractures: a biomechanical analysis

Wei Wang, Baoqing Pei, Yuyang Pei, Zhenpeng Shi, Chao Kong, Xueqing Wu, Nan Wu, Yubo Fan and Shibao Lu

Computer Methods in Biomechanics and Biomedical Engineering, 2019, vol. 22, issue 13, 1083-1092

Abstract: Posterior pedicle fixation technique is a common method for treating thoracolumbar burst fractures, but the effect of different fixation techniques on the postoperative spinal mechanical properties has not been clearly defined, especially on adjacent segments. A finite element model of T10-L2 with moderate T12 vertebra burst fracture was constructed to investigate biomechanical behavior of three posterior pedicle screw fixation techniques. Compared with traditional short-segment 4 pedicle screw fixation (TS-4) and intermediate long-segment 6 pedicle screw fixation (IL-6), mono-segment 4 pedicle screw fixation (MS-4) provides a safer surgical selection to prevent the secondary degeneration of adjacent segments in the long-term.

Date: 2019
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DOI: 10.1080/10255842.2019.1631286

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