Material
Basic Properties BIOLOX forte and BIOLOX delta
Material Properties BIOLOX delta
Combinations, Applications, and Production
Lubrication
Synovial Fluid Lubrication
Three states of lubrication are observed in total hip arthroplasty,
including fluid film lubrication (A), mixed lubrication (B) and
boundary lubrication (C). The especially smooth and hydrophilic
surfaces of ceramic components help to ensure that the wear-
reducing lubrication states A and B are achieved more often than in
other bearings.
We know today that there is no permanent hydrodynamic state of lubrication in artificial hip joints. The continuous shifting between motion and rest and the frequent generation of one-sided stress usually prevent the formation of a permanent lubricating film of synovial fluid. This makes the wear resistance of the articulating materials even more crucial.
Excellent Wettability
The strong hydrogen bonds that form between ceramic surfaces
and synovial fluid give ceramic materials wetting properties
that are superior to those of metal and polyethylene.
Hydrogen bonds between ceramic surfaces and synovial fluid ensure excellent wetta- bility and the formation of an effective lubricating film.