What
is the compression strength ?
How
many years' history ?
Can
Eurocer® be used in spine arthrodesis ? How
?
Can
there be other forms of Eurocer 200
?
What
is the resorption time of Eurocer
?
Can
Eurocer ® 200 be cut or screwed
?
What
is the mechanical strength of Eurocer® 200
?
What
is the seniority of Eurocer®
?
What
are the origins and composition of Eurocer®
substitutes ?
What
reactions are observed during the use of
Eurocer® substitutes ?
What
are the use limitations (including in the event
of pseudarthrosis...) ?
What
fitting techniques give the best chance to the
product and what are the
limits?
Are
there comparative studies showing Eurocer's
superiority over bone grafts
?
What
is the compression strength ?
Eurocer®
400's compression strength is a few megapascals,
i.e. close to nil, and it cannot be used other
than for filling or spare graft without support
requirements.
The strength of
Eurocer® 200 is 15 to 30
megapascals, according to tests by an
independent lab and according to normal samples
used ; that strength increases quickly in the
first weeks after the fitting (see the work of
Trécant and his colleagues, see
bibliography).
How
many years' history ?
The first
setting up was carried out in the early days of
October 1996.
Can
Eurocer® be used in spine
arthrodesis ? How ?
Can
there be other forms of Eurocer
200® ?
That is
possible, provided there is a specific
requirement for the use of a new form ; please
contact the Pro
Biomateria
group.
They will handle all this promptly.
What
is the resorption time of Eurocer
?
It varies depending
on the operation site, recipient site vitality and
transplanted product (kind, size) ; it is not
dependent on the age of the patient.
- The granules
sometimes resorb entirely in 5 years (for
instance in a femoral shaft, behind a prosthetic
acetubulum, in some fractures
- The resorption
is sometimes slower and the granules are faded
by still visible after 6 years in the same
fitting sites.
- The forms of
Eurocer ® 200 also resorb within different
times (depending on the volume and operation
site), but much more slowly ; first the edges
are nibbled, and then erased, possibly
corresponding to a gradual substitute
compactness loss.
Can
Eurocer® 200 be cut or screwed
?
It is
difficult and not recommended to cut or drill
Eurocer ® 200 ; it is a fragile material in
the physical meaning of the term, i.e.
breakable, and the breaking direction and spot
cannot be foreseen ; however, it can be possible
to make-to-measure a fragment for embedding : it
should then be broken like a piece of ceramic,
with a hammer and chisels or large Liston type
tongs ; always do any cutting outside the
operation site, on the table, to prevent very
small fragments from dispersing in the operation
site ; drilling with a standard bit is not
possible, because of the hardness of the
substitute, leading to breakage ; a special bit,
like a bit for glass, is required.
What
is the mechanical strength of Eurocer 200 ?
The
compression strength is in the region of 15 to
30 Mpa ; other strengths (torsion, bending and
shearing) are low and that is why the product
should be used only for compression
resistance.
What
is the seniority of Eurocer?
The
substitutes Eurocer® 400 and 200
were available simultaneously in October 1996 ;
biphasic granules, with similar compositions,
had already been marketed ; however,
Eurocer® 200 was the first
biphasic available in various shapes for uses
requiring compression resistance.
What
are the origins and composition of Eurocer
substitutes ?
These are
only synthetic products (see details by clicking
the Eurocer
200 or
the Eurocer
400
link).)
What
reactions are observed during the use of
Eurocer® substitutes
?
In 7 years
and after several thousands fittings, the
members of the Pro Biomateria assessment group
(GECO)
and other users observed no local or general
intolerance or rejection reaction. Its
histological integration was shown by
histological surveys.
See
"Eurocer ® integration histology"
slides"
What
fitting techniques give the best chance to the
product and what are the limits?
The
recipient site receiving the
Eurocer® should always be living,
and as a result, the fitting (in spite of a few
successes by some members of the Pro Biomateria
members) is still not advised in atrophic or
similar pseudarthroses, such as carpian scaphoid
pseudarthrosis.
The conventional
rules of orthopedic and traumatology surgery
should always be complied with (decortication,
medullar canal perforation...), the
Eurocer® only replaces the bone
graft.
See
Dr. Pierre Lecestre's slides for
results.
Are
there comparative studies showing Eurocer's
superiority over bone grafts ?
Not that
we know of ; however, there is a growing number
of publications reporting long term allograft
failures after good short and medium term
results.
This could be an
immunity issue
- antibodies in
20 % of freeze-dried bone allograft cases
(Friedlander 1981)
- antibodies in
65 % of cryo-stored bone allograft cases (Nelson
1994)
Index
- Eurocer
400
- Eurocer
200 +
- Range
- What
is ceramic ?
Works
and publishing
- Contact
- Questions/Answers
- Scientific
report
- Regulation
International
distribution
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