| Eksisterende Hofte Behandlingsmetoder
vs. HemiCAP™
As with the knee, the hip is treated with a variety of arthroscopic
and arthroplasty procedures. For the most part, these treatments
are the same as the treatments described for the knee. The
most significant difference, however, lies in the fact that
a much higher percentage of hip treatments involve a total
joint replacement or a partial (hemi) joint replacement. This
difference, the Company believes, stems from two factors:
the greater difficulty gaining access to the inner surfaces
of the hip joint and the minimal benefit experienced from
many of the non-prosthetic treatments. A number of hip procedures
are in fact so-called "hemis." In these cases, only
the ball of the hip is replaced while the natural socket (acetabulum)
is maintained.
Marrow Stimulation
Techniques
"Abrasion arthroplasty"
In abrasion arthroplasty, a high-speed rotary burr or shaving
device is used to remove about 1mm of bone from the surface
of the lesion. This creates an exposed bone bed that will
bleed and this will initiate a fibro-cartilage healing response.
The fibro-cartilage then grows into and fills the hole or
lesion creating a new but inferior surface. This technique
can provide short-term (1-3 years) pain relief, but often
patients are unable to resume their desired activity levels.
"Microfracture/MicrodrillingTechnique"
This technique is very similar to abrasion arthroplasty except
that the bleeding is initiated by impacting awls, picks or
drilling directly into the bone within the lesion.
Articular defects that are larger than 15mm in diameter are
generally believed to require a more aggressive intervention
and are typically treated using one of the following approaches,
most of which are performed in open surgery:
Hemi Replacement
Hemiarthroplasty is the replacement of only one articular
surface of a joint which means only a small amount of diseased
tissue is being removed.
The HemiCAP™ implant is a rounded, cap-like implant
made from a cobalt chrome alloy with a central post on the
implanted, or bone side. Cobalt chrome is a material that
has been used in total joint reconstruction devices for over
two decades. It has proven to provide a safe, effective and
strong weight-bearing surface in joints. The CAP™ system
precisely aligns the surface of the implant to the contours
of the patient's articular cartilage surface, thus filling
the defect and restores a smooth and continuous articulating
surface.
Arthrosurface believes that the HemiCAP™ implant will
offer the following clinical advantages:
-
Relief from current pain and swelling
-
Return to normal activity with rapid recovery time
-
Restoration of a smooth, continuous, articulating load-bearing
surface.
-
A simple and reproducible outpatient/ambulatory surgical
procedure
For more information on the Arthrosurface
HemiCAP concept such as brochures, articles, video etc., please
contact Ortotech
directly.
 
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