Influence of patient position and implant material on the stress distribution in an artificial intervertebral disc of the lumbar vertebrae

Karpiński, Robert; Jaworski, Łukasz; Szala, Mirosław; Mańko, Monika

doi:10.1051/itmconf/20171507006

Cited by 15 publications

(7 citation statements)

References 15 publications

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“…Moreover, they intensify pain and negative biological response of tissues which leads to local irritation and inflammation and consequently, to implant failure. Titanium and its alloys are very popular in medicine although the cobalt based and nickel based alloys are still applicable as a biomaterials [1][2][3][4][5][6][7]. Unfortunately, titanium alloys have insufficient abrasion resistance.…”

Section: Introductionmentioning

confidence: 99%

Adhesion and Mechanical Properties of TiAlN and AlTiN Magnetron Sputtered Coatings Deposited on the DMSL Titanium Alloy Substrate

2019

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Consideration of thin films such as deposition of TiAlN or AlTiN on DMLS (direct metal laser sintered) titanium-based implants is a new biomedical trend. The present study encompassed the investigations of hardness, Young modulus, adhesion of TiAlN and AlTiN magnetron sputtered coatings deposited on DMLS (direct metal laser sintering) of Ti6Al4V substrate. The titanium based substrate was manufactured in the DSLM process by means of 3D EOSINT M280 printer for metals supplied by EOS. The surface morphology of specimens was examined using the Dektak 150 profilometer (Veeco Instruments Inc., USA). The mechanical properties (hardness, Young's modulus) of nitride coatings and the substrate were tested by means of Ultra Nanoindentation Tester (Anton Paar GmbH, Germany). The values of hardness and elastic modulus were calculated from the load-displacement data according to the Oliver Pharr method. The adhesion of deposited coatings was determined by means of the scratch test and Rockwell test. Scratch tests were performed on a Micro Combi Tester (Anton Paar GmbH, Germany) according to the ASTM C1624 − 05(2015) standard for ceramic coatings scratch testing. It was found that TiAlN as well as AlTiN films were characterised by excellent adhesion to DMLS titanium-based substrate as well as sufficient morphology and mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Adhesion and Mechanical Properties of TiAlN and AlTiN Magnetron Sputtered Coatings Deposited on the DMSL Titanium Alloy Substrate

2019

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“…In recent years, FDM- (fused deposition modeling) and SLA- (stereolithography) 3D-printing have become increasingly popular [ 3 ]. 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 ].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

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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.

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“…Proper selection of an orthosis is a key condition for its effectiveness. The effectiveness of the orthosis is influenced, among others, the effect of geometry, material and production process [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Application of the finite element method to the design of an ankle orthosis

Stefańczak

Gajewski

Rogala

2021

J. Phys.: Conf. Ser.

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AFO (Ankle-Foot Orthosis), which covers the ankle and foot, protects and supports the ankle joint as well as the structures around it. It contributes to the maintenance of the correct gait cycle. Owing to orthoses, the functional capacity of the body part is significantly improved, and so is the quality of life for the user. Personalized orthoses, which are adapted to the anatomy of the user, are more and more often produced by the additive methods. The use of 3D printing for the manufacturing medical devices is becoming increasingly common due to the low cost of the whole process, short production time and the possibility of the product personalization. One of the stages in manufacturing AFOs with the additive method is to create a three-dimensional model of the orthosis in CAD software. Finite element analysis was performed to assess the mechanical properties of the orthosis. The influence of geometry and the materials used were investigated with FEM analysis software. As a result of structural analysis during the design stage, the assessment of the medical device in terms of its durability and mechanical resistance without putting the user at risk is possible. On the basis of the obtained results, the structure strength was compared.

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Influence of patient position and implant material on the stress distribution in an artificial intervertebral disc of the lumbar vertebrae

Cited by 15 publications

References 15 publications

Adhesion and Mechanical Properties of TiAlN and AlTiN Magnetron Sputtered Coatings Deposited on the DMSL Titanium Alloy Substrate

Adhesion and Mechanical Properties of TiAlN and AlTiN Magnetron Sputtered Coatings Deposited on the DMSL Titanium Alloy Substrate

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

Application of the finite element method to the design of an ankle orthosis

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