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Journal of Materials Science: Materials in Medicine

, Volume 20, Issue 11, pp 2181–2187 | Cite as

Hyaline cartilage surface study with an environmental scanning electron microscope. An experimental study

  • S. Sastre
  • S. Suso
  • J. M. Segur
  • G. Bori
  • J. A. Carbonell
  • E. Agustí
  • M. Nuñez
Article

Abstract

To obtain images of the articular surface of fresh osteochondral grafts using an environmental scanning electron microscope (ESEM). To evaluate and compare the main morphological aspects of the chondral surface of the fresh grafts. To develop a validated classification system on the basis of the images obtained via the ESEM. The study was based on osteochondral fragments from the internal condyle of the knee joint of New Zealand rabbits, corresponding to fresh chondral surface. One hundred images were obtained via the ESEM and these were classified by two observers according to a category system. The Kappa index and the corresponding confidence interval (CI) were calculated. Of the samples analysed, 62–72% had an even surface. Among the samples with an uneven surface 17–22% had a hillocky appearance and 12–16% a knobbly appearance. As regards splits, these were not observed in 92–95% of the surfaces; 4–7% showed superficial splits and only 1% deep splits. In 78–82% of cases no lacunae in the surface were observed, while 17–20% showed filled lacunae and only 1–2% presented empty lacunae. The study demonstrates that the ESEM is useful for obtaining and classifying images of osteochondral grafts.

Keywords

Articular Surface Environmental Scanning Electron Microscope Zealand Rabbit Cartilaginous Tissue Osteochondral Graft 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgement

We thanks the graft from Transplant Service Foundation that has allowed performing this work.

Conflict of interest statement

All authors disclose any financial and personal relationships with other people or organisations that could inappropriately influence (bias) our work. Including employment, consultancies, stock ownership, honoraria, paid expert testimony, patent applications/registrations, and grants or other funding.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • S. Sastre
    • 1
  • S. Suso
    • 1
  • J. M. Segur
    • 1
  • G. Bori
    • 1
  • J. A. Carbonell
    • 1
  • E. Agustí
    • 1
  • M. Nuñez
    • 1
  1. 1.Orthopaedic Department of Hospital ClínicBarcelonaSpain

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