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Zimmer, Inc.

Zimmer® Persona Knee

Zimmer Persona Knee - The Personalized Knee System

Zimmer is redefining knee arthroplasty and ushering in a new era of personalization with the introduction of the Persona Knee. The Persona System makes the most clinically successful knee replacement more personalized than ever by focusing on the unique needs of the patient, surgeon and institution.1

We used our leadership and knowledge of the natural movement of the knee to develop the Persona Knee. Working with more than 50 of the world’s most respected orthopaedic surgeons, and utilizing analytics from both genders and 1,500 different bone types from 26 different ethnicities, Zimmer was able to create the most anatomically accurate knee implant.

The result is the Persona Knee. Our goal was to come as close as possible to the remarkable mechanics of the human body…where form truly does follow function. Welcome to the Persona Knee – putting the person back in knee replacement.

Knee replacement implants have improved the lives of millions, and today knee replacement is one of the most successful medical device surgeries. More surgeons trust Zimmer NexGen Knee Replacements for their patients than any other total knee replacement surgery system. As the leading orthopaedic implant manufacturer, we have one overriding commitment: To restore mobility, alleviate pain and improve the quality of life for patients around the world.

Overcoming Limitations. Minimizing Compromises.

Until the Persona Knee, limitations in knee arthroplasty systems required surgeons to accept compromises, which have created surgical inefficiencies and posed challenges to realizing desired patient outcomes. The Persona Knee equips the surgeon with a comprehensive system that provides remarkable intraoperative flexibility.

The result is an implant system that addresses the unique needs of the patient and accommodates surgeon-specific preferences — all while empowering surgeons to minimize “trade-offs” and better optimize results.

Persona Knee features include:

  • Innovative morphologic knee implant designs
  • Comprehensive sizing with tighter increments
  • Side-specific kinematics
  • Differential conformity articulation
  • Cruciate Retaining and Posterior Stabilized philosophies
  • Integrated intelligent instruments

References

1. 2011 Australian National Registry and National Joint Registry for England and Wales.

Note: Limited availability outside the US.

Uncompromising Fit, Intuitive Alignment Accuracy

The Persona Knee is the most globally comprehensive morphologic knee system available, providing uncompromising fit and intuitive alignment accuracy. For example, the innovative tibiofemoral kinematic implant design facilitates more natural knee motion. The legacy anatomic patellofemoral groove restores the physiologic balance needed to achieve efficient knee flexion and proper patellar tracking.

Persona Knee features anatomical femoral and tibial components that are designed to provide uncompromising fit and intuitive alignment accuracy. Plus, the morphological component sizing increments aid in reproducible ligamentous balance. Side-specific (left and right) tibiofemoral articulation accommodates natural asymmetric kinematics. Small-statured anatomies are also addressed with components specifically designed to provide uncompromising, bone-conserving fit.

Intuitive and Efficient

The Persona Knee facilitates intuitively achieved results by reducing surgical compromises and increasing surgical efficiency. “Intelligent” instrumentation provides the surgeon with increased precision and ease in aligning to patient anatomy and achieving physiologic balance.

A fully-integrated Persona instrument system enables surgeon-selected instruments to be configured to complement a personal surgical technique, resulting in a highly-intuitive system that increases surgical efficiency. Many innovative instruments increase efficiencies and streamline procedures, and ergonomically-designed instrumentation provides greater intuitiveness. Finally, the custom kitting options help optimize surgical efficiencies.

Clinical Heritage

The Persona Knee utilizes legacy anatomic patello-femoral component designs with decades of clinical history. It features Asymmetric Cruciate Retaining femoral condyles with demonstrated differential rollback, and a Posterior Stabilized multi-radius cam for consistent posterior rollback.

Performance

The Persona Knee features clinically proven Trabecular Metal™ Material, which is structured to function like bone, allowing biological fixation, providing long-term fixation, reducing wear and maintaining bone quality.

The Persona Knee incorporates an implant design that accommodates up to 155° for PS/CR or 145° for UC, of safe high flexion as required in daily activities. It has improved backside wear performance due to unrivaled locking mechanism and surface finish on tibia components that virtually eliminate micromotion. Also, up to 155° of high flexion provided by femur design maintains optimal contact area through flexion in daily activities.

Longevity

Several features of the Persona Knee contribute to longevity. The “active stabilization” Vitamin E-enriched polyethylene is formulated to maintain initial mechanical strength and oxidation resistance for the long term.2

The combination of the Persona Knee’s tibia-locking mechanism and premier tibia surface finish reduces micromotion and associated backside wear.

Advanced Materials

The Persona Knee is composed of advanced materials for improved wear, strength and fit. It features Vivacit-E® Vitamin E Highly Crosslinked Polyethylene for an articulating surface that provides exceptional oxidative stability, ultra-low wear and improved strength. The Trabecular Metal Material, with physical and material properties that closely resemble cancellous bone, provides excellent initial fit and the potential for long-term biological fixation.

2. Data on file at Zimmer. Laboratory testing not necessarily indicative of clinical performance.

Note: Limited availability outside the US.