Radiopacity of tantalum-loaded acrylic bone cement

C. Persson, L. Guandalini, F. Baruffaldi, L. Pierotti, M. Baleani

Research output: Contribution to journalArticlepeer-review


Radiopacifying agents are commonly added to bone cements to enhance the visibility of the cement in radiography. The radiopacifiers usually employed may, however, have undesired effects on the mechanical properties of the cement. A potentially new radiopacifier is tantalum, which in the present work was evaluated in terms of radiopacity. Bone cements containing different percentages of tantalum were compared with plain bone cement as well as with formulations containing different percentages of the commonly used radiopacifier barium sulphate. The radiopacity was assessed quantitatively and qualitatively, by measuring with a digital densitometer the optical density of the cement on X-ray films, and consulting the expertise of ten orthopaedic surgeons. It was found that tantalum does present radiopacity, but not as high as barium sulphate under the specific conditions applied to this study.

Original languageEnglish
Pages (from-to)787-791
Number of pages5
JournalProceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
Issue number7
Publication statusPublished - 2006


  • Barium sulphate
  • Bone cement
  • Radiopacity
  • Tantalum

ASJC Scopus subject areas

  • Biomedical Engineering
  • Mechanical Engineering
  • Medicine(all)


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