Advanced Surface Technology

7 layers for protection

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AS Columbus®
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AS EnduRo
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AS Material
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AS VEGA System®
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AS e.motion®
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AS Advanced Surface
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AS Columbus®
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AS EnduRo
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AS Material
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AS VEGA System®
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AS e.motion®
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AS Advanced Surface

Advanced Surface is an innovative coating for knee implants to improve mechanical properties and biocompatibility of knee systems.

The zirconium nitride top coat is characterised by its exceptional surface hardness. The wear rate is reduced by up to 88% 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.

 

Beta-PE
 

All Aesculap knee system’s polyethylenes are sterilized under Beta radiation which uses higher concentrated, lower penetrating radiation levels for reduced oxidation yielding better wear results.

 

Better long term results
 

The AS coating in combination with Beta-PE yields superior performance. Better long term results can be expected.

Advantages

  • Up to 88% reduced wear rates1
  • Allergy prevention through effective metal ion barrier by 7 layer coating
  • Biocompatibility and improved wettability1
  • Increased hardness and thus improved scratch resistance1
  • Improved fatigue properties of polyethylene1

1. Grupp TM, Giurea A, Miehlke RK, Hintner M, Gaisser M, Schilling C, Schwiesau J, Kaddick C. Biotribology of a new bearing material combination in a rotating hinge knee articulation. Acta Biomater. 2013 Jun;9(6):7054-63.