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| ADVANCE® Posterior Stabilized Total Knee Systems |
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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, for years the most widely accepted PS knee systems in the world. Yet despite the successful clinical history of these designs, problems such as "patellar clunk" and posterior tibial dislocation continue to be reported. With improvement as the focal point of their mission, a group of experienced physicians and engineers established four measurable goals to improve upon the clinical success of the previous posterior stabilized designs:
- Improve patellofemoral kinematics
- Reduce wear rate potential
- Increase resistance to posterior tibial dislocation
- Achieve at least 120o flexion in all sizes
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