Risk assessment of resurfacing implant loosening and femur fracture under low-energy impacts taking into account degenerative changes in bone tissues. Computer simulation

Eremina, Galina M.; Smolin, Alexey Yu.

doi:10.1016/j.cmpb.2021.105929

Cited by 21 publications

(4 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is an efficient, discrete method for modelling the mechanical behaviour of heterogeneous materials. It has been established that such methods have demonstrated themselves extremely well for modelling the mechanical behaviour of biomaterials and metals under dynamic loading at micro-and mesoscales [4][5][6][7]. In MCA, the simulated material is represented as a packing of cellular automata (discrete elements of the same size) interacting with neighbours according to certain rules, which makes it possible to describe its mechanical behaviour as that of an isotropic elastic-plastic body within the framework of the particle approach.…”

Section: Methods Of Movable Cellular Automatamentioning

confidence: 99%

“…The main advantages of this method are the possibility of explicitly taking into account a complex hierarchical structure, modelling the failure of the material, and the possibility of implicitly taking into account the fluid in the internal pores and channels. The interstitial fluid is taken into account by dividing the problem to be solved into two sub-problems: 1) description of the mechanical behaviour of the solid matrix; 2) description of the fluid transfer in a porous solid matrix [6]. The solid matrix contains a system of interconnected channels and pores, which are implicitly taken into account.…”

Section: Methods Of Movable Cellular Automatamentioning

confidence: 99%

See 1 more Smart Citation

Simulation of Mechanical Processes at the Contact Region of a Dental Implant with Bone Tissues Under Shock Wave Treatment

Smolin,

Eremina,

Martyshina

2023

J. Mater. Eng.

View full text Add to dashboard Cite

Dental implants are becoming an increasingly important part of modern dental treatment. Developing an optimal implant surface design can improve osseointegration. Promising to increase the rate of osseointegration is the use of external shock wave therapy, which has proven itself for the treatment of fractures, bone defects, and bone tissue regeneration during surgery and arthroplasty. This work aims at a numerical investigation of the effects of low-energy shock wave therapy of various ranges on the mechanical behaviour of bone tissues, taking into account the physiological characteristics in the area of dental implant placement. Modelling was carried out using the method of movable cellular automata. Using computer simulation, it was found that the conditions for the regeneration of bone tissues at the near-contact zone with the implant of the jaw segment are created by a shock wave with an intensity of greater than 0.1 mJ/mm2.

show abstract

Section: Methods Of Movable Cellular Automatamentioning

confidence: 99%

Section: Methods Of Movable Cellular Automatamentioning

confidence: 99%

Simulation of Mechanical Processes at the Contact Region of a Dental Implant with Bone Tissues Under Shock Wave Treatment

Smolin,

Eremina,

Martyshina

2023

J. Mater. Eng.

View full text Add to dashboard Cite

show abstract

“…In the last decades, movable cellular automata have been successfully used for modeling heterogeneous materials, including bone tissues at the macroscale and mesoscale [ 38 , 39 , 40 , 41 ]. In this method, the material is considered an ensemble of discrete elements of the same finite size (movable cellular automata) that interact with each other according to certain rules, which due to many-body interaction forces, describe the deformation behavior of the material as an isotropic elastoplastic body.…”

Section: Methodsmentioning

confidence: 99%

Development of a Computational Model of the Mechanical Behavior of the L4–L5 Lumbar Spine: Application to Disc Degeneration

et al. 2022

Self Cite

View full text Add to dashboard Cite

Degenerative changes in the lumbar spine significantly reduce the quality of life of people. In order to fully understand the biomechanics of the affected spine, it is crucial to consider the biomechanical alterations caused by degeneration of the intervertebral disc (IVD). Therefore, this study is aimed at the development of a discrete element model of the mechanical behavior of the L4–L5 spinal motion segment, which covers all the degeneration grades from healthy IVD to its severe degeneration, and numerical study of the influence of the IVD degeneration on stress state and biomechanics of the spine. In order to analyze the effects of IVD degeneration on spine biomechanics, we simulated physiological loading conditions using compressive forces. The results of modeling showed that at the initial stages of degenerative changes, an increase in the amplitude and area of maximum compressive stresses in the disc is observed. At the late stages of disc degradation, a decrease in the value of intradiscal pressure and a shift in the maximum compressive stresses in the dorsal direction is observed. Such an influence of the degradation of the geometric and mechanical parameters of the tissues of the disc leads to the effect of bulging, which in turn leads to the formation of an intervertebral hernia.

show abstract

“…The validation of the used poroelastic models of materials for the bone tissues of the knee joint was performed and published in the authors' previous papers [36,37,44].…”

Section: Model Validationmentioning

confidence: 99%

Numerical Modeling of Shockwave Treatment of Knee Joint

Eremina¹,

Smolin²

2021

Materials

Self Cite

View full text Add to dashboard Cite

Arthritis is a degenerative disease that primarily affects the cartilage and meniscus of the knee joint. External acoustic stimulation is used to treat this disease. This article presents a numerical model of the knee joint aimed at the computer-aided study of the regenerative effects of shockwave treatment. The presented model was verified and validated. A numerical analysis of the conditions for the regeneration of the tissues of the knee joint under shockwave action was conducted. The results allow us to conclude that to obtain the conditions required for the regeneration of cartilage tissues and meniscus (compressive stresses above the threshold value of 0.15 MPa to start the process of chondrogenesis; distortional strains above the threshold value of 0.05% characterized by the beginning of the differentiation of the tissues in large volumes; fluid pressure corresponding to the optimal level of 68 kPa to transfer tissue cells in large volumes), the energy flux density of therapeutic shockwave loading should exceed 0.3 mJ/mm2.

show abstract

Risk assessment of resurfacing implant loosening and femur fracture under low-energy impacts taking into account degenerative changes in bone tissues. Computer simulation

Cited by 21 publications

References 39 publications

Simulation of Mechanical Processes at the Contact Region of a Dental Implant with Bone Tissues Under Shock Wave Treatment

Simulation of Mechanical Processes at the Contact Region of a Dental Implant with Bone Tissues Under Shock Wave Treatment

Development of a Computational Model of the Mechanical Behavior of the L4–L5 Lumbar Spine: Application to Disc Degeneration

Numerical Modeling of Shockwave Treatment of Knee Joint

Contact Info

Product

Resources

About