This
is a relatively new alternative to a total hip replacement.
The ball on top of the thigh bone is not cut away as
in a total hip replacement but resurfaced with a large
metal head. Picture This articulates with a metal cup
fixed to the pelvis like in a total hip replacement.
Q:
What are the advantages and disadvantages of this procedure?
A:
As the ball of the hip joint is not cut away, more bone
can potentially be preserved for later surgery if need
be. Also, the larger ball used can potentially provide
more stability against dislocation. The ball and socket
are made out of hard wearing metal and might be more
suitable for patients with high physical demands. The
operation is more difficult than a standard hip replacement.
The bone supporting the metal ball can also break. The
early complication rate is higher than in a standard
hip replacement.
Q:
Does a resurfacing hip replacement last longer than
a standard hip replacement?
A:
Most studies have shown excellent results up to five
years but the long term results are yet unknown.
Q:
Who will benefit from a resurfacing hip replacement?
A:
This can only be decided on a very individual basis
and differs from patient to patient. In general, younger
and male patients are more likely to be a candidate.
The surgeon will discuss the options with every patient.
Q:
What is a large metal on metal hip replacement?
A:
This new technology combines the advantages of a resurfacing
hip replacement (large metal on metal articulation)
with those of a total hip replacement. It can be used
in patients who are not a candidate for a resurfacing
hip replacement.
|
