| Cemex System
CEMEX SYSTEM - integrated
bone cement mixing system
The fundamental feature of CEMEX bone cements,
that represents a new approach in the bio-material/bone tissue
interface, as well as constituting the basis of some of the
product special features, is the 3:1 powder/liquid ratio.
The elimination of a significant amount of
liquid gives rise to the following important advantages:
low polymerization temperature
low monomer release
low shrinkage
CEMEX, besides these unique characteristics,
has got high mechanical performances that makes it the ideal
bone cement for any kind of application.
Cemex range comprises offers also the Cemex System version,
an integrated system for the preparation and application of
bone cement.
Now also in the FAST version.
POLYMERIZATION
TEMPERATURE
Bone cement is a bio-material prepared by mixing liquid and
powder components.
Once mixed, the powder and liquid react to
form bone cement, accompanied by an increase in temperature.
Excessive temperatures lead to necrosis (death
of bone cells) of the bone tissue in direct contact with bone
cement.
The temperature reached is proportional to
the quantity of monomer: every gram of monomer develops 130
calories.
The elimination of a significant amount of
liquid (-30%) ensures: low polymerization temperature and
therefore significant reduction of bone necrosis.
MONOMER RELEASE
One of the two components of the bone cement
is the liquid.
The liquid contains a substance, the monomer,
which, if it enters the blood circulation, may cause a reduction
of arterial pressure.
Thanks to the new formulation of the bio-material,
TECRES bone cement ensures a 30% reduction in the liquid content.
This means that CEMEX is the bone cement
ensuring the lowest release of monomer.
This characteristic reduces the risks for the patient and
helps the anaesthetist in controlling surgery.
Moreover, CEMEX SYSTEM, thanks to its integrated mixing system,
greatly reduces the emission of monomer vapours in the operating
theatre, with significant advantages for theatre staff.
MECHANICAL PERFORMANCES
Bone cement is used to "fix" joint
prosthesis implants to the host bone.
Bone cement is subject to all the mechanical
forces and stresses generated by body movements such as walking,
sitting and lying down.
Mechanical strength is therefore very important
for the success of joint replacement surgery (arthroplasty).
TECRES, with CEMEX, has succeeded in obtaining
a bone cement which powder is extremely compact and with small
surface.
This characteristic minimises the incorporation
of air into the mass, thereby resulting in a low porosity
bone cement with excellent mechanical performances.
For more information on the Cemex System
such as brochures, articles, video etc., please contact
Ortotech directly or visit the official homepage
www.tecres.it
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