New LEGION™ Narrow Femoral Components with OXINIUM™ offer improved patient specific fit and wear performance

  New LEGION™ Narrow Femoral Components with OXINIUM™ offer improved patient
                      specific fit and wear performance

PR Newswire

LONDON, Dec. 19, 2012

LONDON, Dec. 19, 2012 /PRNewswire/ --Smith & Nephew (LSE: SN, NYSE: SNN), the
global medical technology business, today announces an extension to its highly
successful LEGION™ Total Knee System - LEGION™ Narrow Femoral Components with
OXINIUM™ Oxidized Zirconium. The only narrow components that offer Smith &
Nephew's proprietary VERILAST™ Technology, these new implants offer surgeons
and their patients the potential for implants with better fit and wear
performance. 

These new LEGION components are thinner in the medial/lateral dimension
(side-to-side) to give surgeons the ability to more closely fit a patient's
natural anatomy. For patients with smaller femurs, using a femoral component
that is too wide can result in overhang of the femoral component. Studies have
shown that improving implant fit can reduce pain and increase satisfaction
among total knee replacement patients.^i

In addition to fit, the new femoral components address implant wear
performance with the use of VERILAST Technology. The combination of two wear
reducing materials – the proprietary OXINIUM alloy and a highly cross-linked
plastic liner, VERILAST Technology has the potential to improve the wear
performance of an implant. In fact, even on traditional plastic liners,
OXINIUM implants are 4,900 times more abrasion resistant than cobalt chrome
and have been shown in lab testing to reduce artificial joint wear by
85-percent compared to cobalt chromium femoral components.^ii

"These new components further demonstrate the LEGION Total Knee System's
commitment to patient specific fit," says Dr. Steven Haas, Chief of Knee
Service at The Hospital for Special Surgery in New York City. "When you add
the LEGION Narrow options to the system's existing asymmetric tibias,
gender-based sizing and advanced bearing materials, the ability for me to
optimize fit for each of my patients is really exciting."

"Two of the biggest concerns with any total knee replacement are wear
performance and fit," explains Scott Elliott, SVP & General Manager,
Reconstructive Strategic Business Unit for Smith & Nephew's Advanced Surgical
Devices Division. "With the LEGION Total Knee System, we offer an
unprecedented solution to both: VERILAST Technology for wear performance and
new size options to address patient fit."

First introduced in 1997, the LEGION Total Knee System is a comprehensive
system that allows surgeons to address a diverse range of surgical challenges
with one system of instrumentation and components. The system includes both
cruciate retaining and posterior stabilized primary knees, as well as revision
knees and has more than 15 years of clinical history and continues to achieve
outstanding clinical outcomes.^iii

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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Trademark of Smith & Nephew. Registered US Patent and Trademark Office.

^i Overhang of the Femoral Component in Total Knee Arthroplasty: Risk Factors
and Clinical Consequences; JBJS 2010 ; Ormonde M. Mahoney, MD

^ii G. Hunter and M. Long, "Abrasive wear of oxidized Zr-2.5Nb, CoCrMo, and
Ti-6Al-4V against bone cement", 6th World Biomaterials Cong. Trans., Society
For Biomaterials, Minneapolis, MN, 2000, p. 835.

^iii Based on GENESIS II clinical data; Knee. 2012 Jan;19(1):8-13. Epub 2011
Apr 14., The Genesis II in primary total knee replacement: a systematic
literature review of clinical outcomes., Bhandari M, Pascale W, Sprague S,
Pascale V.

SOURCE Smith & Nephew

Website: http://www.smith-nephew.com
Contact: Brad Merrick, Media, Smith & Nephew, +1-901-399-1089,
Brad.merrick@smith-nephew.com; or, Phil Cowdy, Media Investor/Analyst, Smith &
Nephew, 44 (0)20 7401 7646, Phil.Cowdy@smith-nephew.com
 
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