Like the Stryker ABGII, the
Stryker Rejuvenate was recalled over a year ago, in July, 2012. At the time of
the recall, Stryker officials stated the Stryker Rejuvenate had a
higher-than-normal rate of failure due to corrosion and fretting, leading to
metal ion debris being released into the bodies of patients. Stryker chose to
use a ceramic ball in the Stryker Rejuvenate rather than a cobalt and chromium
ball as well as creating a dual modularity design for the Stryker Rejuvenate.
The design features of the Stryker Rejuvenate allowed surgeons to custom fit
each hip implant device to the individual patient’s body type and activity
level.
The Stryker Rejuvenate was
geared toward younger, more active patients, and most of the thousands of
patients who received a Stryker Rejuvenate believed it to be a safer
alternative to the all-metal hip implant devices. Unfortunately those beliefs
were shattered when patients began seeing adverse health symptoms soon after
they received their Stryker Rejuvenate implant. A combination of issues in the
Stryker Rejuvenate worked together to create a potentially dangerous hip
implant device. The longer stem of the Stryker Rejuvenate made it more
difficult to remove should a revision become necessary. The coating on the
implant was thick and particularly porous, to encourage the bone to grow into
the implant, once again making it more difficult to remove.
A serious mismatch between the
titanium stem portion and the cobalt and chromium neck could also be
responsible for the extremely high levels of metal ions released in Stryker
Rejuvenate patients. Studies done over a decade ago found corrosion to be
significantly higher in hip implants—such as the Stryker Rejuvenate—which used
dissimilar metals. A more recent study noted that a galvanic reaction occurred
when the titanium stem and chromium and cobalt adapter sleeve of the Stryker
Rejuvenate were mixed. Researchers believe that galvanic reaction occurs due to
the harder cobalt and chromium metals.
Patients who have a Stryker
Rejuvenate hip device implanted in their body should be alert for any adverse
health effects; metal toxicity can cause a variety of symptoms such as loss of
hearing and vision, vertigo, depression, anxiety and irritability, skin
disorders, DNA disruption, cardiovascular, neurological, gastrointestinal,
renal and thyroid disorders, some forms of cancer, reproductive issues and loss
of memory.
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