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. 2021 Jul 14;9:680769. doi: 10.3389/fbioe.2021.680769

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Copyright © 2021 Wo, Lv, Wang, Shen, Zhu, Liu, Huang, Sun and Li.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Stress analysis of the intact finite element (FE) cervical spine model and cervical artificial disc replacement (CADR) FE models. (A) The Von Mises stress can be observed, including intact, Prestige LP, and cervical subtotal discectomy prosthesis–cervical disc prosthesis (CSDP-CDP) structure FE models in flexion, extension, lateral bending, and axial rotation loads. Stress of the Prestige LP FE model, distributed in the central region, was much higher than that of the CDP structure FE and intact FE models. Stress distribution of the CSDP-CDP structure FE model was similar to that of the intact FE model, located in the peripheral region. (B) Maximum Von Mises stress analysis of the intact, Prestige LP, and CSDP-CDP structure FE models.