Inhomogeneous cartilage properties enhance superficial interstitial fluid support and frictional properties, but do not provide a homogeneous state of stress.

@article{Krishnan2003InhomogeneousCP,
  title={Inhomogeneous cartilage properties enhance superficial interstitial fluid support and frictional properties, but do not provide a homogeneous state of stress.},
  author={Ramaswamy Krishnan and Seonghun Park and Felix Eckstein and Gerard A. Ateshian},
  journal={Journal of biomechanical engineering},
  year={2003},
  volume={125 5},
  pages={569-77}
}
It has been well established that articular cartilage is compositionally and mechanically inhomogenous through its depth. To what extent this structural inhomogeneity is a prerequisite for appropriate cartilage function and integrity is not well understood. The first hypothesis to be tested in this study was that the depth-dependent inhomogeneity of the cartilage acts to maximize the interstitial fluid load support at the articular surface, to provide efficient frictional and wear properties… CONTINUE READING

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