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A Nanocomposite Poly(Methyl-Methacrylate) Bone Cement

Published

Author(s)

A H. Gomoll, A Bellare, W Fitz, T S. Thornhill, R D. Scott, P R. Jemian, Gabrielle G. Long

Abstract

Poly(methyl methacrylate) (PMMA) based orthopaedic bone cements contain 1-3 micro υ size radiopacifier particles. Incomplete dispersion of these particles leads to the presence of 50-200 micro υ size agglomerates. These large defects are sites of high-stress concentration that reduce the fracture toughness of PMMA. In this study, the micrometer-sized radiopacifying particles of a commercial bone cement were replaced by nanosized fillers. Both, commercial and nanocomposite PMMA bone cements were characterized using ultra-small angle x-ray scattering and low voltage scanning electron microscopy; mechanical properties were evaluated using ASTM standard tensile testing. The results showed a substantial reduction of particle agglomerate size and a significant increase in tensile properties of the nanocomposite over that of the standard microcomposite bone cement.
Proceedings Title
Nanophase and Nanocomposite Materials, Symposium | 3rd | Nanophase and Nanocomposite Materials III | Materials Research Society
Volume
581
Conference Dates
November 1, 1999
Conference Location
Undefined
Conference Title
Materials Research Society Symposium Proceedings

Keywords

bone, bone cement, nanocomposites, SAXS

Citation

Gomoll, A. , Bellare, A. , Fitz, W. , Thornhill, T. , Scott, R. , Jemian, P. and Long, G. (2000), A Nanocomposite Poly(Methyl-Methacrylate) Bone Cement, Nanophase and Nanocomposite Materials, Symposium | 3rd | Nanophase and Nanocomposite Materials III | Materials Research Society, Undefined (Accessed July 17, 2024)

Issues

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Created June 30, 2000, Updated October 12, 2021