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Frequently Asked Questions:
- Do Big Heads wear more or less than
smaller heads?
Several studies have been done which have shown that head size
diameter does not adversely affect the rate of wear. In fact,
there's theoretically less wear with larger heads.
- What is jump distance?
Jump distance is the distance from the dome of the cup to the rim. It
is the overall distance that the femoral head must travel in order to
dislocate once the stem has impinged on the edge of the cup. The range
of jump distance for the CONSERVE® Total Hip with BFH® Technology is 16-24.4mm. The average jump
distance for 28mm heads is 15mm.
- Why does Wright superfinish the Big Heads
and Cups?
Superfinishing is a proprietary grinding and polishing process
maintaining ultra high tolerances related to the overall size and
roundness. We measure this process in tolerances
down to 0.000001in (one millionth of an inch). In addition to smooth
rotation, this superfinishing also allows for optimum fluid
lubrication of components which in turn reduces wear.
- What is the maximum range of motion?
The 54mm head coupled with the PERFECTA® Slim
Neck design has a range
of motion of 167°.
- Is the CONSERVE® Total Hip System cup a
true hemisphere?
No, the CONSERVE® Total Hip System cup is a low-profile cup with 170° of spherical
geometry compared to 180° of a true hemispherical design.
- Does the CONSERVE® Total Hip System cup
have a rim flare?
No, the cup has no rim flare. It does not feature built-in press-fit
like the LINEAGE® Hip Cup System. Therefore, Wright recommends that the surgeon under
ream by 1mm for a proper press fit.
- How do I locate a surgeon in my area that performs a
CONSERVE® Total with BFH® Technology total hip replacement?
Click the link below to find a surgeon near you.
http://www.wmt.com/PhysLocator/PhysLoc.asp
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