Investigation into cervical spine biomechanics following single, multilevel and hybrid disc replacement surgery with dynamic cervical implant and fusion: A finite element study
| Autor: | Iman Zafarparandeh, Deniz Ufuk Erbulut, Muzammil Mumtaz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Orthodontics
Technology business.industry QH301-705.5 Biomechanics Hybrid Surgery Cervical Spine biomedical_chemical_engineering Bioengineering Finite Element Cervical spine Finite element study Finite element method Article Dynamic Cervical Implant Multilevel Fusion Medicine Implant Biology (General) cervical spine finite element dynamic cervical implant multilevel fusion hybrid surgery disc replacement business Disc Replacement |
| Zdroj: | Bioengineering, Vol 9, Iss 16, p 16 (2022) Bioengineering Bioengineering; Volume 9; Issue 1; Pages: 16 |
| Popis: | Cervical fusion has been a standard procedure for treating abnormalities associated with the cervical spine. However, the reliability of anterior cervical discectomy and fusion (ACDF) has become arguable due to its adverse effects on the biomechanics of adjacent segments. One of the drawbacks associated with ACDF is adjacent segment degeneration (ASD), which has served as the base for the development of dynamic stabilization systems (DSS) and total disc replacement (TDR) devices for cervical spine. However, the hybrid surgical technique has also gained popularity recently, but its effect on the biomechanics of cervical spine is not well researched. Thus, the objective of this FE study was to draw a comparison among single-level, bi-level, and hybrid surgery with dynamic cervical implants (DCIs) with traditional fusion. Reductions in the range of motion (ROM) for all the implanted models were observed for all the motions except extension, compared to for the intact model. The maximum increase in the ROM of 42% was observed at segments C5–C6 in the hybrid DCI model. The maximum increase in the adjacent segment’s ROM of 8.7% was observed in the multilevel fusion model. The maximum von Mises stress in the implant was highest for the multilevel DCI model. Our study also showed that the shape of the DCI permitted flexion/extension relatively more compared to lateral bending and axial rotation. |
| Databáze: | OpenAIRE |
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