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Smith & Nephew Receives FDA 510k Clearance for a
30-year Knee
New wear simulator data shows Smith & Nephew's
exclusive VERILAST™ technology reduces leading cause of knee implant
failure by 81-percent over 30-year span
LONDON, Sept. 12, 2012 -- Smith & Nephew (NYSE: SNN; LSE: SN), the
global medical technology business, today announced the launch of
its LEGION™ HK Hinge Knee implant to surgeons in the US and Canada.
As the first hinged knee to be designed using normal knee
kinematics, the implant provides a new option for those patients
facing difficult primary or revision knee surgery.
"This signals a real change in the hinge knee landscape," explains
Gaurav Agarwal, DSVP and General Manager for Smith & Nephew's
Advanced Surgical Devices division. "With this implant, we are not
only simplifying the procedure, we are transforming these complex
surgeries from salvage operations to true joint-rescue procedures."
For patients, the LEGION HK Hinge Knee has been designed to closely
match the knee's original anatomy while also restoring more normal
function, thanks to next-generation rotating knee technology. In
fact, the design of the implant provides a more natural range of
motion[1,4] while maintaining an average of 96% condylar loading—a
design feature shown to remove the stresses from the hinge link for
lower wear on the hinge device.[2]
For surgeons, the LEGION HK Hinge Knee offers simplicity and
familiarity. An extension of the clinically successful LEGION Total
Knee System, the LEGION HK allows surgeons to seamlessly transition
intraoperatively from a constrained revision implant to a hinged
assembly, thus using a minimal number of instruments and the same
simple, reproducible surgical technique they already know.
"The LEGION HK system is a significant leap forward in treating
complex knee revision surgery," says Dr. Kris Alden, Director of
Joint Replacement at West Suburban Hospital in Chicago. "Its
kinematic and bone sparing design not only alleviates my patients'
symptoms, but also restores an almost natural knee function. Couple
that with its ease of use, and it has greatly aided my practice when
treating significant bone and ligamentous deficiencies."
A hinged knee replacement is an implant system in which the three
components (the upper, the lower and the plastic liner) of the
implant are joined together with a hinged mechanism. Typically, this
type of knee replacement is used when a knee is highly unstable and
the patient's ligaments will not provide the support necessary for
the more common type of knee implant.
The LEGION Total Knee System has over 15 years of clinical history
and continues to achieve outstanding clinical results.[3] Since the
system's launch, there have been over 1 million primary and revision
knees implanted worldwide.
About Smith & Nephew
Smith & Nephew is a global medical technology business dedicated to
helping improve people's lives. With leadership positions in
Orthopaedic Reconstruction, Advanced Wound Management, Sports
Medicine and Trauma, Smith & Nephew has almost 11,000 employees and
a presence in more than 90 countries. Annual sales in 2011 were
nearly $4.3 billion. Smith & Nephew is a member of the FTSE100 (LSE:
SN, NYSE: SNN).
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