Structural Analysis of the Pelvic Girdle Before and After Hip Replacement Procedure

Zubrzycki, Jarosław; Karpiński, Robert; Jaworski, Łukasz; Ausiyevich, A. M.; Smidova, Natalia M.

doi:10.21122/2227-1031-2018-17-2-165-172

Cited by 6 publications

(5 citation statements)

References 3 publications

(3 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Received results of tensions decomposition were shown in the following images. FEM analysis was conducted by Huber -von Mises hypothesis [21]. In Fig.…”

Section: Fem Analysismentioning

confidence: 99%

Numerical analysis of spinal stabiliser in spondylolisthesis treatment with pedicle screws

Zubrzycki

2019

MATEC Web Conf.

View full text Add to dashboard Cite

The aim of the research on experimental parts was to analyse the influence of the lumbar stabilisation on the strength aspects of the lumbar part of human spine and stabiliser in case of spondylolisthesis treatment. The models were built with the use of pre-surgical CT diagnostics, routinely used in medical practice. MIMICS software was used to process the results of the neuroimaging research and to create a 3D model. Two models were built: one with and the other without a stabilizer. Afterwards, a static load analysis for the load coming from the upper part of the body was done. Analysis was performed using the finite element method (FEA). The performed simulations enabled to determine the stress in particular discs for both models, with and without transpedicular stabiliser.

show abstract

“…Received results of tensions decomposition were shown in the following images. FEM analysis was conducted by Huber -von Mises hypothesis [21]. In Fig.…”

Section: Fem Analysismentioning

confidence: 99%

Numerical analysis of spinal stabiliser in spondylolisthesis treatment with pedicle screws

Zubrzycki

2019

MATEC Web Conf.

View full text Add to dashboard Cite

show abstract

“…Individual FEM studies of hip joint prostheses, known in the literature [3][4][5][6][7][8][9][10][11][12][13], provide differentiated information on the indicated contact parameters with different values of Young's modulus and Poisson's ratio (Table 1). UHMW-PE polyethylene has poor heat resistance and the given values of Young's modulus may be reduced to 15-20% [14,15] at the temperature of the human body.…”

Section: Introductionmentioning

confidence: 99%

Study of Contact Parameters in Metal-On-Plastic Hip Endoprosthesis with the Analytical-Numerical Method of Contact Mechanics

Chernets¹,

Zubrzycki²

2023

Adv. Sci. Technol. Res. J.

View full text Add to dashboard Cite

The purpose is to analyze the influence of the elastic characteristics of the materials of the tribological pair: acetabular-femoral head on the maximum pressures in the hip joint endoprosthesis. The paper analyzes the impact of elasticity characteristics (i.e. E and ν) on the contact parameters of a tribological pair (maximum contact pressure and contact angle), which is a hip endoprosthesis. The analysis was made on the basis of the author's calculation method. The study determined the value of contact pressures depending on the changes in the elastic characteristics of UHMW-PE and changes in the geometry of the tribological pair (variable radii of the Grade2TDN head and the UHMW-PE acetabulum). It was noticed that increasing E modulus of UHMW-PE increases its stiffness, which causes a noticeable increase in contact pressures in the endoprosthesis. The quantitative and qualitative regularities of this impact were determined. The developed method allows for earlier estimation of contact pressures depending on the external load (patient's body weight), and geometric parameters of the artificial hip joint (diameter of the endoprosthesis head and the acetabulum). This allows you to make a personalized endoprosthesis resistant to damage. It is very important in modern medicine because life expectancy in developed countries is longer and the durability of endoprostheses should be 10-12 years. Hospital statistics show that the need for total hip replacement concerns even younger people. Implantation of a hip joint prosthesis is an invasive and costly procedure, hence the need to produce prostheses with a long service life (over 15-20 years) before re-arthroplasty. The obtained test results showed that the use of an endoprosthesis cup made of UMHW-PE with higher stiffness (high E 1 value and low × value) results in an increase in maximum contact pressures p(0). Increasing the Poisson's ratio in the tested range causes an increase in the contact pressure p(0) even 1.1 times. Increasing the diameter of the head of the D 2 endoprosthesis decreases the contact pressure by an average of 2.32 times. On the other hand, a change in the radial clearance e in the tribological pair of the hip endoprosthesis from 0.1 mm to 0.2 mm causes an increase in contact pressures by an average of 1.35 times.

show abstract

“…These methods provide a terrific opportunity for medicine to bring widely available solutions with inexpensive planning, prototyping, guiding, and even creating on-demand 3D-printed tools, models, and prostheses [ 4 , 5 , 6 , 7 ]. The personalized anatomical models can then be implemented in various engineering applications, such as the Materialise Mimics or Materialise 3-matic and CAD/CAM/CAE software, allowing their further analysis using, e.g., the finite element method (FEM) [ 8 , 9 ]. The materials used during these processes can be chosen accordingly, e.g., PET-G for surgical guides, PLA/resin for patient skull models, or PEEK for the production of prostheses.…”

Section: Introductionmentioning

confidence: 99%

Low-Cost Cranioplasty—A Systematic Review of 3D Printing in Medicine

et al. 2022

View full text Add to dashboard Cite

The high cost of biofabricated titanium mesh plates can make them out of reach for hospitals in low-income countries. To increase the availability of cranioplasty, the authors of this work investigated the production of polymer-based endoprostheses. Recently, cheap, popular desktop 3D printers have generated sufficient opportunities to provide patients with on-demand and on-site help. This study also examines the technologies of 3D printing, including SLM, SLS, FFF, DLP, and SLA. The authors focused their interest on the materials in fabrication, which include PLA, ABS, PET-G, PEEK, and PMMA. Three-dimensional printed prostheses are modeled using widely available CAD software with the help of patient-specific DICOM files. Even though the topic is insufficiently researched, it can be perceived as a relatively safe procedure with a minimal complication rate. There have also been some initial studies on the costs and legal regulations. Early case studies provide information on dozens of patients living with self-made prostheses and who are experiencing significant improvements in their quality of life. Budget 3D-printed endoprostheses are reliable and are reported to be significantly cheaper than the popular counterparts manufactured from polypropylene polyester.

show abstract

Structural Analysis of the Pelvic Girdle Before and After Hip Replacement Procedure

Cited by 6 publications

References 3 publications

Numerical analysis of spinal stabiliser in spondylolisthesis treatment with pedicle screws

Numerical analysis of spinal stabiliser in spondylolisthesis treatment with pedicle screws

Study of Contact Parameters in Metal-On-Plastic Hip Endoprosthesis with the Analytical-Numerical Method of Contact Mechanics

Low-Cost Cranioplasty—A Systematic Review of 3D Printing in Medicine

Contact Info

Product

Resources

About