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LEGION TKS

ORTHOPAEDICS

LEGION◊ Total Knee System

A comprehensive implant portfolio that offers the versatility to meet patients’ needs in the most difficult cases, from complex primary to revision.1-6

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The knee you know. Innovation you demand

Designed to accommodate diverse patient anatomies and surgical philosophies, the LEGION Knee System gives surgeons modular adaptability for cementless, cruciate retaining and posterior-stabilized approaches.

After decades of clinical use and joint registry survivorship data covering 15 years,7 it continues to evolve using with new features and technologies, balancing the knee you know with innovation you demand for:

+ Personalization

Compatibility with robotic-assisted surgery facilitates personalized alignment techniques

+ Versatility

An extensive implant range, plus the option of a medial stabilized insert

+ Performance

Unique 3D-printed titanium coating to help support biological fixation

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Strength in numbers



Restoring kinematic function

The LEGION System’s anatomic design was engineered to help restore the structures, biomechanics and kinematics of the native knee. Browse individual implant features to learn how they affect functional outcomes.

LEGION TKS surgical technique

Watch a surgeon-led demonstration for tips and guidance on the surgical workflow.

Faster with cementless40



CONCELOC Advanced Porous Titanium is a patented method of creating a fully randomized and porous structure to help support bone ingrowth without the need for cement. Made with Ti-6Al-4V, it offers:

+ Stable fixation with 98.5% survivorship demonstrated at 2 years41-42

+ Significant improvements in patient reported outcome measures (KKOS JR/FJS), shown in a study****43

+ 80% porosity and pore size of 228µm to 633µm44,45

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Why go cementless?


Does cementless TKA improve efficiency ?

When compared to cemented approaches, cementless TKA can lead to shorter operating time46 and eliminate the possibility of cement fragments that can lead to third-body wear.

Can cementless TKA enhance patient recovery ?

Cementless TKA has the potential to offer a biologic interface for fixation47 and can help reduce the risk of fat embolism and other issues related to cement pressurization (compared to cemented approaches).48

Will cementless TKA result in better patient outcomes ?

While not guaranteed, cementless TKA has been shown to improve aspects such as joint function and quality of life (when compared to pre-operative values).43,49

Medial stabilized insert



Adapting to a global trend in knee arthroplasty,50 the LEGION Medial Stabilized insert is designed to improve kinematics and maintain stability while being independent of PCL function.8

Introduced to offer procedural versatility, the medial stabilized insert has two key features:

1. To maintain medial stability similar to the normal knee, the insert is designed with a higher anterior medial lip

2. For extension and lateral rollback, the flattened lateral geometry enables the screw-home mechanism

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Benefits of robotic-assisted surgery



To adapt to specific patient needs with fully personalized surgery, the LEGION System can be used seamlessly with our CORI Surgical System to plan and execute surgery with reproducible accuracy.51 This includes:

+ Real-time planning and gap assessment

+ Portable system with a small OR footprint, ideal for outpatient surgery in the ASC52

+ Choice of image-based and image-free options to plan and execute personalized implant alignment

Learn more about the CORI System
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System options

One system, all solutions. Easy as 1,2,3

Reference material

Related products

Disclaimers

*LEGION PS OXINIUM with resurfaced patella (Adjusted HR 0.82[95% CI:0.75-0.89]; p<0.001.

**When adjusted for group, gender, year, cohort, BMI group, ASA patella used and PS/CR constraint. Reduction in the risk of revision for infection – p=0.002. Reduction in the risk of revision for femoral aseptic loosening – p<0.001.

***Compared to PFC Sigma, Optetrak, and NexGen Legacy in a 1998 study.

****p<0.001.

*****95% joint line restoration – n=110. 77% Reduced constraint vs manual – n=115.

 

Products may not be available in all markets because product availability is subject to the regulatory and/or medical practices in individual markets. Please contact your Smith+Nephew representative or distributor if you have questions about the availability of Smith+Nephew products in your area. For detailed product information, including indications for use, contraindications, precautions and warnings, please consult the product’s applicable Instructions for Use (IFU) prior to use.

 

Citations
  1. Watson J, et al. Bone & Joint Science. 2015;5(1):1-8.
  2. Nadaud M, et al. Orthopedics. 2007;30(8):97.
  3. Bieger R, et al. Arch Orthop Trauma Surg. 2013;133(2):237-241.
  4. Abdel MP, et al. Clinical Orthopaedics and Related Research®. 2014;472(8):2477-2482.
  5. Sisko ZW, et al. Clin Orthop Relat Res. 2017;475(12):2970-2980.
  6. Victor J, et al. Int Orthop. 2014;38(2):235-241.
  7. Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR) 2021. Hip, Knee & Shoulder Arthroplasty Annual Report. Adelaide; AOA, 2021. Accessed at https://aoanjrr.sahmri.com/annual-reports-2021.
  8. National Joint Registry for England, Wales, Northern Ireland and the Isle of Man. Hertfordshire, UK 2021. 18th Annual Report.
  9. McCalden RW, et al. J Arthroplasty. 2017;32(7):2161-2166.

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