Physicians

ADVANCE® Posterior Stabilized Knee

Built on 20 years of clinical success

For nearly two decades, the major innovations in posterior stabilized (PS) knee designs have taken place at the Hospital for Special Surgery (HSS) in New York City.

These innovations included the Insall/Burstein® I and II knee systems, for years the most widely accepted PS knee systems in the world.¹³ Yet despite the successful clinical history of these designs, problems such as "patellar clunk" and dislocation continue to be reported.^7,8,9 By addressing these problems, creating a higher standard is well within reach.

Evolutionary, not revolutionary

With a new standard in mind, Wright, in cooperation with Albert Burstein, PhD; Donald Bartel, PhD; Timothy Wright, PhD; and Bruce Robie, PhD of the Hospital for Special Surgery, New York, designed the ADVANCE® PS Total Knee System. This third generation in PS design builds on the clinical success of the I/B® systems. By addressing the reported concerns, the ADVANCE® PS Total Knee System doesn't change PS principles; it improves upon them.

Advancing the standard

The ADVANCE® PS Total Knee System was designed by a team of experienced physicians and engineers, specialists in knee arthroplasty, analysis, materials science, and knee design. With improvement as the focal point of their mission, the team, led by HSS, collected and analyzed retrieved prostheses, reviewed literature, and questioned key physicians to determine where improvements could be made. As a result, five measurable and enforceable design goals were established:

1. Improve patellofemoral kinematics
2. Reduce wear rate potential
3. Increase resistance to posterior tibial dislocation
4. Achieve at least 120° flexion in all sizes
5. Improve femoral fit