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Histological aspects in bone regeneration of an association with porous hydroxyapatite and bone marrow cells

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Abstract

The osteogenic potential of an association of two kinds of hydroxyapatite (HA) porous ceramics with autologous bone marrow cells cultured with or without dexamethasone (10-8M) addition in the culture medium and non-cultured rabbit marrow stromal stem cells (MSCs) was tested after 4 weeks of implantation in the dorsal muscles of spine in rabbit. A significantly higher number of rabbits with implants containing bone tissue inside pores were obtained with 107 cells ml-1 cultured treated with Dex. In the HA porous ceramic using naphtalen as porogen agent, the bone recolonization remains only at the periphery of implants and in the second row of pores, while in the HA porous ceramic using polymethacrylate (PMMA) microbeads as porogen agent, the bone recolonization is observed in the depth of implants. In the PMMA HA group, the Kru¨skal–Wallis variance analysis between the rabbits is significantly different with the percentage of number of occupied pores and occupied pores with bone tissue is different (p < 0.05).

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Authors and Affiliations

  1. Institut Calot, IRMS, 62608, Berck/Mer Cedex-, France

    B. Flautre, K. Anselme, C. Delecourt, J. Lu & P. Hardouin

  2. CRITT Ceramiques Fines, Z.I. Champ de l’Abbesse, 59600, Maubeuge, France

    M. Descamps

Authors
  1. B. Flautre
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  2. K. Anselme
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  3. C. Delecourt
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  4. J. Lu
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  5. P. Hardouin
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  6. M. Descamps
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Flautre, B., Anselme, K., Delecourt, C. et al. Histological aspects in bone regeneration of an association with porous hydroxyapatite and bone marrow cells. Journal of Materials Science: Materials in Medicine 10, 811–814 (1999). https://doi.org/10.1023/A:1008923625599

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  • DOI: https://doi.org/10.1023/A:1008923625599

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