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- W2374058088 abstract "Objective To develop and validate three-dimensional finite element models of transforaminal lumbar interbody fusion,and explore the most appropriate method of fixation and fusion by comparing biomechanical characteristics of fixation method. Methods Developing four fusion models: bilateral pedicle screws fixation with a single cage insertion model( A); bilateral pedicle screws fixation with two cages insertion model( B); unilateral pedicle screws fixation with a single cage insertion model( C); unilateral pedicle screws fixation with two cages insertion model( D),the models were subjected to different forces including axial compressive,anterior bending,posterior extension,left bending and rotation. The von Mises stress of the fusion segments on the pedicle screw and cages were recorded. Results There were differences in Von Mises peak stress between four models,but were within the range of maximum force. The angular variation in A,B,C and D decreased significantly compared with normal. There was no significant differences in angular variation between A and B,C and D. Bilateral pedicle screws fixation had more superior biomechanics than unilateral pedicle screws fixation. Conclusion The lumbar interbody fusion models were established using varying fixation methods,and the results verified that unilateral pedicle screws fixation with a single cage could meet the demand in transforaminal single segment interbody fusion." @default.
- W2374058088 created "2016-06-24" @default.
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- W2374058088 date "2014-01-01" @default.
- W2374058088 modified "2023-09-24" @default.
- W2374058088 title "Finite element analysis of transforaminal lumbar interbody fusion" @default.
- W2374058088 hasPublicationYear "2014" @default.
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