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Deformation behaviour of a natural-shaped bone scaffold

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F16%3A00461386" target="_blank" >RIV/68378297:_____/16:00461386 - isvavai.cz</a>

  • Alternative codes found

    RIV/68407700:21260/16:00300619

  • Result on the web

    <a href="http://mit.imt.si/Revija/izvodi/mit163/kytyr.pdf" target="_blank" >http://mit.imt.si/Revija/izvodi/mit163/kytyr.pdf</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.17222/mit.2014.190" target="_blank" >10.17222/mit.2014.190</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Deformation behaviour of a natural-shaped bone scaffold

  • Original language description

    The study aims at mechanical testing of an artificial bone structure in the form of a scaffold for the application in the repairs of trabecular bones after wounds or degenerative diseases. Such artificial construct has to conform to many requirements including biocompatibility, permeability properties and bone-integration characteristics. Recently, self-degradable bone scaffolds suitable for natural-bone-tissue ingrowth optimized with respect to mechanical properties and body-fluid flow have been considered as an alternative to allografts and autografts. Here, an analysis of deformation behaviour of a scaffold with a morphology identical to the natural bone is the first step in this task. In this work, the geometry and morphology of scaffold specimens produced with direct 3D printing were based on a 3D model derived from the X-ray-computed micro-tomography measurement of a real trabecular bone. The geometrical model was upscaled four times in order to achieve the optimum ratio between its resolution and the resolution of the 3D printer. For its biocompatibility and self-degradability, polylactic acid was used as the printing material. The mechanical characteristics were obtained from a series of uniaxial compression tests, with an optical evaluation of the strain field on the surfaces of the specimens. The acquired stress-strain curves were compared with the characteristics of a real trabecular bone obtained with time-lapse microtomography measurements, evaluated with the digital volumetric correlation method. The results show good correspondence of the stiffness values for both the natural and artificial bone specimens.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    JJ - Other materials

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2016

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Materials and Technology

  • ISSN

    1580-2949

  • e-ISSN

  • Volume of the periodical

    50

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    SI - SLOVENIA

  • Number of pages

    5

  • Pages from-to

    301-305

  • UT code for WoS article

    000385008500003

  • EID of the result in the Scopus database

    2-s2.0-84975066518