Orthopaedic coatings
The coating of orthopaedic implants, such as
total joint replacement prostheses, is undertaken
with the aim of either increasing the wear resistance
of the implant materials or to provide an implant
surface which increases the biocompatibility of
the prosthesis with the surrounding host bone.
This increase in biocompatibility leads to the
formation of new bone around the implant resulting
in better fixation and improved long term performance
of the replacement joint.
Accentus utilises plasma spraying techniques
to apply a full range of bioactive coatings to
implants manufactured by several global orthopaedic
manufacturers. These coatings include :- Titanium,
TiVAl alloy,CoCrMo alloy and Hydroxyapatite. Our
coating facilility is approved to ISO 9000 - 2000
standards and our coatings have received all of
the regulatory approvals needed for free sale
in Europe and North America.
A successful example of our coating processes
is the plasma sprayed deposition of bio-active
Hydroxyapatite (HA) onto the surface of joint
replacements. Such coatings give the benefits
of:
- Greater acceleration of healing process
- Reduced risk of post-operative infection
- Active encouragement of bone growth
- Better body acceptance, lower rejection
- Improved long term prosthesis fixation
Extensive mechanical and histological analyses
carried out in Accentus's laboratories have
demonstrated the efficacy of our coatings and
many clinical papers published by our customers
have proven the performance of our coatings
in the clinical environment.
The photograph above shows the interface of bone
and metal implant (M) with "bi" titanium
and hydroxyapatite (HA) coating. Actively forming
bone (B) with osteoid seams is visible both at
and near the bone - implant interface. The bone
was stained by Toluidine blue and viewed with
a x20 objective, 3 months after insertion of implant.
Top of page
>
|
