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The
theoretical advantages of disc replacement over traditional surgical treatment
of damaged discs are extraordinary.

Differing from
current spine fusion techniques, disc replacement is intended to maintain
motion at the level of the operation once the damaged disc has been removed.
In theory, disc replacement protects the other lower discs by sharing the
stress on the lower back when we bend, lift, etc.
Replacement of painful arthritic joints is extremely common. Hip and knee
replacement are among the most successful and reliable operations, with
good results typically in over 90% of patients.
The idea of replacing damaged disc with artificial discs is not new. Disc
replacement has been performed in Europe for almost 10 years, and this concept
is currently the topic of intense interest in the US.
Several large spinal implant manufacturers have done extensive research
in the development of artificial discs.

Currently, damaged
discs are simply removed, leaving behind no structural support between adjacent
vertebrae.
This lack of support between the vertebrae can often lead to residual back
pain. In certain individuals, the reason they suffer from debilitating back
pain is the motion that occurs through a damaged disc. Currently in the
United States, the most common surgical solution is the fusion or welding
of the damaged disc.
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