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Effects of barium concentration on the radiopacity and biomechanics of bone cement: experimental study

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Abstract

Purpose

This study was undertaken to evaluate the changes in the radiopacity and mechanics of polymethylmethacrylate (PMMA) bone cement with the addition of barium.

Materials and methods

Barium sulfate powder was added to a PMMA bone cement with an initial 10% barium concentration. The changes in radiopacity and strength were evaluated by testing cement blocks containing four barium concentrations (10%, 20%, 30%, 40%). Radiopacity was evaluated by measuring the computed tomography (CT) values of the bone cement, and strength was evaluated by compressive, three-point bending, and impact load tests.

Results

CT values increased in proportion to the barium concentration. The compressive load test showed that cement with a 40% barium concentration was significantly more fragile than cement with lower barium concentrations. The three-point bending load test showed that the cement became more fragile in proportion to the barium concentration. The impact load test showed that cement with 30% and 40% barium concentrations was significantly more fragile than cement with 10% and 20% barium concentrations.

Conclusion

Radiopacity is increased and strength is reduced by adding increasing concentrations of barium powder to bone cement. The results of the present study suggest that adding barium permits the radiopacity and strength of bone cement to be adjusted in clinical practice.

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Authors and Affiliations

  1. Department of Radiology, Mie University School of Medicine, 2-174 Edobashi, Tsu, 514-8507, Japan

    Masashi Makita, Koichiro Yamakado, Atsuhiro Nakatsuka, Haruyuki Takaki, Tadashi Inaba, Fumiyoshi Oshima, Hidetaka Katayama & Kan Takeda

Authors
  1. Masashi Makita
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  2. Koichiro Yamakado
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  3. Atsuhiro Nakatsuka
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  4. Haruyuki Takaki
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  5. Tadashi Inaba
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  6. Fumiyoshi Oshima
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  7. Hidetaka Katayama
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  8. Kan Takeda
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Corresponding author

Correspondence to Masashi Makita.

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Makita, M., Yamakado, K., Nakatsuka, A. et al. Effects of barium concentration on the radiopacity and biomechanics of bone cement: experimental study. Radiat Med 26, 533–538 (2008). https://doi.org/10.1007/s11604-008-0269-0

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  • DOI: https://doi.org/10.1007/s11604-008-0269-0

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