In vivo versus in vitro polymerization of acrylic bone cement: Effect on material properties

W. L. Bargar, S. A. Brown, H. A. Paul, T. Voegli, Y. Hseih, Neil Sharkey

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Flexural strength and molecular weight of polymethylmethacrylate bone cement were determined for cement polymerized in vivo in a canine total hip replacement and cement from the same batch polymerized in vitro. Both in vivo and in vitro samples showed a slight increase in flexural strength and modulus at 2 weeks, followed by a nearly equivalent decline at 8 weeks. In vitro and in vivo samples exhibit a comparable stress to failure, but the in vivo samples show a significantly increased strain and decreased modulus. Cement from the proximal region of the prosthesis has significantly decreased flexural strength, lower modulus, and lower molecular weight than cement from the distal region and plug, suggesting that failures in the proximal region of a prosthesis may be due to inferior physical and mechanical properties of the bone cement in that region.

Original languageEnglish (US)
Pages (from-to)86-89
Number of pages4
JournalJournal of Orthopaedic Research
Volume4
Issue number1
DOIs
StatePublished - Jan 1 1986

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Polymethyl Methacrylate
Polymerization
Bone Cements
Prostheses and Implants
Molecular Weight
Hip Replacement Arthroplasties
Canidae
In Vitro Techniques

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine

Cite this

Bargar, W. L. ; Brown, S. A. ; Paul, H. A. ; Voegli, T. ; Hseih, Y. ; Sharkey, Neil. / In vivo versus in vitro polymerization of acrylic bone cement : Effect on material properties. In: Journal of Orthopaedic Research. 1986 ; Vol. 4, No. 1. pp. 86-89.
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In vivo versus in vitro polymerization of acrylic bone cement : Effect on material properties. / Bargar, W. L.; Brown, S. A.; Paul, H. A.; Voegli, T.; Hseih, Y.; Sharkey, Neil.

In: Journal of Orthopaedic Research, Vol. 4, No. 1, 01.01.1986, p. 86-89.

Research output: Contribution to journalArticle

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AU - Brown, S. A.

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