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Cormet Hip Resurfacing
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The Cormet System of metal on metal hip
resurfacing was begun by Corin. The Corin system
has been in use since 1991. It claims to be the
older of the current hip resurfacing systems.
The Cormet Design has:
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head sizes from 40 mm to 56 mm
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10 cup sizes from 46mm to 64 mm
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A unique Displasis cup in 5 sizes
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Small Incision instrumentation allowing
it's use in Minimal Incision Surgery
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Equatorial expansion of cup to optimise
the initial press fit
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Plasma sprayed Ti and HAP coating to
ensure long life
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98% survivorship in patients at seven
years and average age of 50
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Modular head allow revision to a large
diameter THR if needed
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Development of the Corin Hip Resurfacing
System
In the late 1980’s Corin collaborated with a group
of UK orthopaedic surgeons to develop a
metal-on-metal resurfacing hip designed to provide a
solution for treatment of this high demand patient
group. This new generation of metal-on-metal hip
resurfacing implants offered a number of key
advantages to these patients compared to
conventional total hip replacement:
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Hip Resurfacing is a conservative operation,
since the femoral head and neck are not removed
- the femoral head is simply reshaped and
resurfaced with a metal cap.
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Elimination of polyethylene in the bearing
removes the possibility of polyethylene-induced
osteolysis and accompanying failure of the
implant.
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The metal-on-metal bearing is expected to last
much longer than a conventional
metal-on-polyethylene bearing, delaying the need
for revision surgery in high demand patients.
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The large diameter bearing is much more stable
than the small diameter bearing of a
conventional total hip replacement, all but
eliminating the risk of dislocation and allowing
patients to return to a more active lifestyle.
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