LEGION^◊

There are many factors that ultimately influence implant endurance. Smith & Nephew has been at the forefront of innovation in the area of endurance, as demonstrated through a legacy of success.

The design of the LEGION Total Knee System was inspired by the GENESIS II Total Knee System, which has a longstanding record of clinical success. For more than 10 years and in more than 30 countries, the GENESIS II Total Knee System has achieved outstanding clinical outcomes. ^1,2,3

Smith & Nephew has a longstanding reputation for providing surgeons with technologies designed to maximize implant wear resistance. That reputation was built through market leading innovations such as our highly polished tibial baseplates, tibial locking mechanism and the award-winning OXINIUM ^◊ Oxidized Zirconium. That history of innovation continues with the introduction of the VERILAST ^◊ Technology.

In lab testing, Smith & Nephew demonstrated that the composition of the mating component has a significant influence in the wear resistance of the entire bearing couple (see VERILAST ^◊ chart ¹ below).

After simulating 3 years of use, the mean volumetric wear of VERILAST couples (2.67 mm3) was approximatley 98% lower than CoCr/CPE couples (120.42mm3).

After simulating 3 years of use, the mean volumetric wear of VERILAST couples (120.42 mm3) was approximatley 81% lower than CoCr/CPE couples (22.78mm3).

Our testing shows that the wear of polyethylene combined with Cobalt Chrome increases under the clinically relevant, abrasive conditions. However, when combined with OXINIUM ^◊ Oxidized Zirconium, wear resistance is maximized. This result is attributed to the scratch resistance that OXINIUM ^◊ provides.

Therefore, VERILAST ^◊ Technology, the combination of OXINIUM ^◊ Oxidized Zirconium and highly cross-linked polyethylene produces a knee implant system that addresses the need for greater wear resistance. All orthopaedic manufacturers have highly cross-linked polyethylene. Only Smith & Nephew has VERILAST ^◊ Technology.

Engineered for life

Clinical References
_{1. Laskin, Richard S., Davis, John, “Total Knee Prosthesis using the GENESIS II Prosthesis: a 5-year follow-up study of the first 100 consecutive patients.”, The Knee 12 2005, pp.163-167.}

_{2. Snyder, Mark, “GENESIS II Total Knee Arthroplasty: 5 to 8 year results”, Smith & Nephew, Inc, 2006}

_{3. Bourne, Robert B., McCalden, Richard W, MacDonald, Steven J, Mokete, Lipalo, Guerin, Jeff, “Influence of Patient Factors on TKA Outcomes at 5 to 11 Years Followup.”, Clinical Orthopaedics & Related Research, November 2007, 464:27-31}

_{4. 2005 Engineering Materials Achievement Award, American Society for Metals, 2005.}

The LEGION ^◊ Total Knee System empowers you to address diverse surgical challenges with one A-P Resection, one system and one company such as:

• Rheumatoid arthritis

• Post-traumatic arthritis

• Osteoarthritis

• Degenerative arthritis in older patients whose age, weight and activity level are compatible with an adequate long-term result

• Failed osteotomies

• Unicompartmental replacement or total knee replacement

• Patients in primary and revision surgery, where the anterior and posterior cruciate ligaments are incompetent and the collateral ligaments remain intact.

• Patients in primary and revision surgery, where the posterior cruciate ligament and one or both of the collateral ligaments (i.e. medical collateral and/or lateral collateral ligament) are absent or incompetent.

All LEGION ^◊ Femoral Components share the following features:

• OXINIUM ^◊ material and CoCr options
• Anatomic design
• Lateralized trochlear groove
• Common A-P Resection

Screw-on Femoral Augments

• Distal femoral wedges: 5, 10, and 15mm
• Posterior femoral wedges: 5 and 10mm
• L-wedge combinations: 5x5, 10x5,15x5,5x10, 10x10, 15x10mm
• Composed of Ti-6Al-4V

		All offset couplers/stems can be used on any femoral/tibial component

Today's knee implant patients present increasingly diverse scenarios. As a surgeon, you are only certain of your patient's true clinical condition when surgery is underway and all the factors are visible. You have to make decisions fast and you want to get it right the first time.

Customize Endurance

Personalize with Versatility

Optimize procedures with ease

That is "Power of Simplicity"

The LEGION  Total Knee System includes versatile, simple instrumentation, comprehensive in function and fewer in number. The instrumentation reduces surgical time and simplifies decision-making during the intra-operative procedure. As a result, you are able to achieve excellent alignment and effectively restore joint line position, giving your patients joint care. ¹

No other knee system offers a broader range of instrumentation options:

• Anterior Cut First and Distal Cut First Femoral Instrumentation
• One A-P Resection
• Extra and Intramedullary Tibial Instrumentation
• Familiar approach and soft-tissue friendly instrumentation for MIS surgery
• Easy, one-step conversion from Cruciate Retaining to Posterior Stabilized

Clinical References

_{1. Nadaud, M, Snyder, M, Brown, D, McPherron, A, “New Trends and Early Clinical Outcomes With a Modern Knee Revision System”, Innovations in the treatment of the arthritic knee - ORTHO supplement, Aug. 2007, pp. 97-101.}