Analysis of bone cement distribution around fenestrated pedicle screws in low bone quality lumbosacral vertebrae

González, Sergio Gómez; Bastida, Gerard Cabestany; Vlad, Maria; López, José López; Caballero, Pablo Buenestado; Álvarez-Galovich, Luis; Rodríguez-Arguisjuela, M.G.; Aguado, Enrique Fernández

doi:10.1007/s00264-018-4115-4

Cited by 3 publications

(3 citation statements)

References 28 publications

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“…3-6 concerning the higher sensitivity of vertebra ESA when considering structure-related material properties at low scales. Particularly, this analysis provides insight into the role of vertebral anisotropy in relation to, for example, preferential flow of bone cement around fenestrated pedicle screws in clinical studies [47].…”

Section: Resultsmentioning

confidence: 99%

Synthetic open cell foams versus a healthy human vertebra: Anisotropy, fluid flow and μ-CT structural studies

González¹,

Jiménez²,

Bastida³

et al. 2020

Materials Science and Engineering: C

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Section: Resultsmentioning

confidence: 99%

Synthetic open cell foams versus a healthy human vertebra: Anisotropy, fluid flow and μ-CT structural studies

González¹,

Jiménez²,

Bastida³

et al. 2020

Materials Science and Engineering: C

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“…In clinical treatment of vertebroplasty, bone cement is commonly used. Bone cement filling material has no biological activity and cannot be accurately designed [ 16 ]. The operation mainly depends on experience, and has certain toxic and side effects, which may affect the requirements of normal stress distribution of adjacent tissues.…”

Section: Introductionmentioning

confidence: 99%

Structural geometries and mechanical properties of vertebral implant with honeycomb sandwich structure for vertebral compression fractures: a finite element analysis

et al. 2021

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Background Because of osteoporosis, traffic accidents, falling from high places, and other reasons, the vertebral body can be compressed and even collapse. Vertebral implants can be used for clinical treatment. Because of the advantages of honeycomb sandwich structures, such as low cost, less material, light weight, high strength, and good cushioning performance. In this paper, the honeycomb sandwich structure was used as the basic structure of vertebral implants. Methods The orthogonal experiment method is applied to analyse the size effect of honeycomb sandwich structures by the finite element method. Based on the minimum requirements of three indexes of peak stress, axial deformation, and anterior–posterior deformation, the optimal structure size was determined. Furthermore, through local optimization of the overall structure of the implant, a better honeycomb sandwich structure vertebral implant was designed. Results The optimal structure size combination was determined as a panel thickness of 1 mm, wall thickness if 0.49 mm, cell side length of 1 mm, and height of 6 mm. Through local optimization, the peak stress was further reduced, the overall stress distribution was uniform, and the deformation was reduced. The optimized peak stress decreased to 1.041 MPa, the axial deformation was 0.1110%, and the anterior–posterior deformation was 0.0145%. A vertebral implant with good mechanical performance was designed. Conclusions This paper is the first to investigate vertebral implants with honeycomb sandwich structures. The design and analysis of the vertebral implant with a honeycomb sandwich structure were processed by the finite element method. This research can provide a feasible way to analyse and design clinical implants based on biomechanical principles.

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“…will cause vertebral injuries [13] . Bone cement is usually used in clinical treatment to repair the defect [14] , but it is impossible to predict whether the biomechanical properties of the vertebral body meet the requirements before the operation.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis of the Size Effect of Vertebral Implant with Honeycomb Sandwich Structure

Guo

Liu

Zhang

et al. 2020

Preprint

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Background: Because of osteoporosis, traffic accidents, falling from high places and other reasons, the vertebral body could be compressed injury, even collapse. Vertebral implant can be used for clinical treatment. Because of the advantages of honeycomb sandwich structure, such as low cost, less material, light weight, high strength, and good cushioning performance, honeycomb sandwich structure was used as the basic structure of vertebral implant.Methods: In this paper, we applied the orthogonal experiment method to analyze the size effect of honeycomb sandwich structure by finite element method. Based on the minimum requirements of three indexes of peak stress, axial displacement, and anterior-posterior displacement, the optimal structure size was determined. Further, through local optimization of the overall structure of the implant, we designed better honeycomb sandwich structure vertebral implant.Results: The optimal structure size combination is determined as the face sheets thickness 1mm, wall thickness 0.49mm, cell side length 1mm, height 6mm. Than through local optimization, the peak stress is further reduced, the overall stress distribution is uniform, and the deformation is reduced. The optimized peak stress decreases to 1.041MPa, the axial deformation is 0.111%, and the anterior-posterior deformation is 0.014%. The honeycomb sandwich structure vertebral implant with stable structure and good mechanical performance was designed.Conclusions: The research result provides a method for the optimal design of vertebral body implant structures, as well as provides a new idea and biomechanical basis for clinical treatment after vertebral body injury.

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Analysis of bone cement distribution around fenestrated pedicle screws in low bone quality lumbosacral vertebrae

Cited by 3 publications

References 28 publications

Synthetic open cell foams versus a healthy human vertebra: Anisotropy, fluid flow and μ-CT structural studies

Synthetic open cell foams versus a healthy human vertebra: Anisotropy, fluid flow and μ-CT structural studies

Structural geometries and mechanical properties of vertebral implant with honeycomb sandwich structure for vertebral compression fractures: a finite element analysis

Finite Element Analysis of the Size Effect of Vertebral Implant with Honeycomb Sandwich Structure

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