• Custom implants. I helped design
the gender knee implant a decade ago
and use it for all my female patients. Its
slightly different, narrower contour bet-
ter matches the female anatomy. We
did a great study looking at digitally
mapped cadaveric femurs, and unsur-
prisingly, there's a significant difference
between men and women.
Gender is a binary choice, though.
What about fully customized implants?
Well, they sound great, but in my expe-
rience they're associated with some
challenges because they're customized
based upon a scan of the arthritic,
deformed knee. Another issue: You get
one implant piece. If you don't like the fit, too bad. I
find it much better to have hundreds of combina-
tions of implants to fit each patient in the OR. You
can't do that with custom implants.
• Robotic assistance. You can use a robotic navi-
gation platform with a cutting system to perform
knee replacements. It's powerful stuff, but I don't
use robots, because the robot's not perfect. It
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SEE IT CLEARLY Because he uses cemented fixation for knee replacements, Dr. Berger can easily see in an X-ray
if implant pieces are loose. That's not the case with cementless fixation.
Midwest
Orthopaedics
at
Rush
