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< Vol. 10 Issue 1 | Jan-Apr 2012 | pp. 1 - 66

Analysis of tantalum implants used for avascular necrosis of the femoral head: a review of five retrieved specimens

Abstract

Aim: The effective results shown in the porous systems of tantalum employed for the use of osseointegrates has been demonstrated by means of animal experimentation. However, there is a total lack of any research studies on the osseointegration of tantalum implants from retrieval of the same after a period of time whereby the material had been implanted within the human body. Materials and Methods: For this study, five rod implants used for the treatment of avascular necrosis of the femoral head were retrieved following collapse of the femoral head and conversion to total hip arthroplasty. The time of implantation ranged between six weeks and twenty months. Results: Observation during this study has confirmed the effectiveness of osseointegration within this period of time. New bone was observed around and within the porous system of the on rod devices at retrieval date. The bone ingrowth, however, proved to be slower and less intense than that resulting within animal species during the first few months after implantation. Conclusions: Nevertheless, the results obtained in the quantitative assessment of this process proved to be similar to those results achieved by other authors in previous experimental work studies.

J Appl Biomater Funct Mater 2012; 10(1): 29 - 36

Article Type: ORIGINAL RESEARCH ARTICLE

DOI:10.5301/JABFM.2012.9273

Authors

Mariano Fernández-Fairen, Antonio Murcia, Roberto Iglesias, Pablo Sevilla, José Maria Manero, Francisco Javier Gil

Article History

  • • Accepted on 01/12/2011
  • • Accepted on 01/12/2011
  • • Available online on 15/03/2012
  • • Available online on 23/06/2012
  • • Published online on 26/06/2012

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Authors

  • Fernández-Fairen, Mariano [PubMed] [Google Scholar]
    Institute of Orthopedic Surgery and Traumatology of Barcelona, Diputación 321, Barcelona - Spain
  • Murcia, Antonio [PubMed] [Google Scholar]
    Department of Orthopedic Surgery, Hospital de Cabueñes, Gijón - Spain
  • Iglesias, Roberto [PubMed] [Google Scholar]
    Department of Orthopedic Surgery, Hospital de Cabueñes, Gijón - Spain
  • Sevilla, Pablo [PubMed] [Google Scholar]
    Department of Materials Science, ETSEIB, CIBER BBN, Universitat Politecnica Catalunya, Barcelona - Spain
  • Manero, José Maria [PubMed] [Google Scholar]
    Department of Materials Science, ETSEIB, CIBER BBN, Universitat Politecnica Catalunya, Barcelona - Spain
  • Gil, Francisco Javier [PubMed] [Google Scholar]
    Department of Materials Science, ETSEIB, CIBER BBN, Universitat Politecnica Catalunya, Barcelona - Spain

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