Design of a 'driven cylinder' viscometer for bone cement rheological characterization

D. Carnelli, E. Bianchi, T. Villa, F. Galbusera, G. Pennati

Research output: Contribution to journalArticle

Abstract

The long-term success of surgical applications requiring bone cement is strongly influenced by the cement's rheological properties. Previous studies showed a clear non-Newtonian, pseudoplastic, time-dependent rheological behaviour of acrylic bone cement during the working time. However, the particular nature of this material raises issues about its rheological characterization: the aim of this paper is to develop a new device, called 'driven cylinder' viscometer, able to accomplish the rheological characterization of acrylic bone cement. Three different fluids were tested by using the 'driven cylinder' viscometer: (a) liquid soap, (b) low-viscosity bone cement, and (c) vertebroplasty bone cement. For the sake of comparison, the rheological behaviour of the fluids (a) and (b) was also evaluated using traditional viscometers. The developed device allowed evaluation of the constitutive rheological parameters for non-Newtonian, power-law fluids. Independent evaluation of the viscosity of liquid soap and lowviscosity bone cement carried out by means of parallel-plate rotational rheometers showed a good agreement with the trends obtained by the 'driven cylinder' viscometer. The device versatility suggests its application for a complete description of pseudoplastic and timedependent rheological properties of acrylic bone cements, which is a mandatory step for virtual tools of cement-based surgical procedures.

Original languageEnglish
Pages (from-to)353-363
Number of pages11
JournalProceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
Volume225
Issue number4
DOIs
Publication statusPublished - Apr 2011

Fingerprint

Bone cement
Bone Cements
Viscometers
Polymethyl Methacrylate
Soaps
Viscosity
Equipment and Supplies
Acrylics
Vertebroplasty
Soaps (detergents)
Fluids
Viscosity of liquids
Rheometers
Cements
Liquids

Keywords

  • Bone cement viscosity
  • Constitutive rheological parameters
  • Non-Newtonian pseudoplastic

ASJC Scopus subject areas

  • Mechanical Engineering
  • Medicine(all)

Cite this

Design of a 'driven cylinder' viscometer for bone cement rheological characterization. / Carnelli, D.; Bianchi, E.; Villa, T.; Galbusera, F.; Pennati, G.

In: Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, Vol. 225, No. 4, 04.2011, p. 353-363.

Research output: Contribution to journalArticle

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