Место издания:Megaron Athens International Conference Centre, Athens, Greece
Первая страница:861
Последняя страница:861
Аннотация:Osteoconductivity is an important characteristic
describing the ingrowth of newly forming bone into the
implant. The implant should have an interconnected
macropores (of about hundreds of microns) and a
specific geometry of pore space (straight channels).
Obviously, the increase in porosity makes a material
more permeable, however, strength properties and
stiffness of the structure are reduced. Structures with
lower stiffness allow diminishing stress shielding near
the implant/bone interface. Coming from these points,
we tried to optimize the geometry of implants
considering open-cell architectures (Kelvin) and triplyperiodic
minimal surfaces1. The permeability of various
structures (assuming to be related to
osteoconductivity) can be estimated by modelling the
flow of liquids of different viscosities through the pore
structure. Modelling of compressive loading of the
architectures allows us to determine their strength
properties (strength, stiffness).
The aim of this work was to elaborate a view on design
of architecture of osteoconductive highly permeable
and mechanically compatible to bone tissue
constructions regarded as bone implants.
