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AS Advanced Surface

AS Advanced Surface is an innovative coating for knee implants to improve mechanical properties and biocompatibility of knee systems.
The zirconium nitride top coat yields superior surface hardness that is unmatched in the market place. The wear rate is reduced by up to 65% compared to standard implants. This ceramic surface layer stands for improved scratch resistance, good wettability and for better articulation between bearing surfaces.
Unlike monolayer coatings, the AS 7-layer coating has a buffer zone which compensates the changes in surface hardness and results in more resilient elastic properties. Additionally the transition layers act as an effective metal ion barrier, thus ideal for patients with metal hypersensitivity.
A powerful bond coating between the base material and subsequent layers ensure strong adhesion.

A total of 401 implantations observed in 6 studies
Biomechanical evidence
Global register results