In vitro evaluation of thermal frontally polymerized thiol-ene composites as bone augments

Nicholas P. Totaro, Zachari D. Murphy, Abigail E. Burcham, Connor T. King, Thomas F. Scherr, Christopher O. Bounds, Vinod Dasa, John A. Pojman, Daniel J. Hayes

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Because of the large number of total knee replacement (TKR) surgeries conducted per year, and with projections of increased demand to almost a million primary TKR surgeries per year by 2030 in the United States alone, there is a need to discover more efficient working materials as alternatives to current bone cements. There is a need for surgeons and hospitals to become more efficient and better control over the operative environment. One area of inefficiency is the cement steps during TKR. Currently the surgeon has very little control over cement polymerization. This leads to an increase in time, waste, and procedural inefficiencies. There is a clear need to create an extended working time, moldable, osteoconductive, and osteoinductive bone augment as a substitution for the current clinically used bone cement where the surgeon has better control over the polymerization process. This study explored several compositions of pentaerythritol-co-trimethylolpropane tris-(3-mercaptopropionate) hydroxyapatite composite materials prepared via benzoyl peroxide-initiated thermal frontal polymerization. The 4:1 acrylate to thiol ratio containing augment material shows promise with a maximal propagation temperature of 160°C ± 10°C, with mechanical strength of 3.65 MPa, and 111% cytocompatibility, relative to the positive control. This frontally polymerized material may have application as an augment with controlled polymerization supporting cemented implants.

Original languageEnglish (US)
Pages (from-to)1152-1160
Number of pages9
JournalJournal of Biomedical Materials Research - Part B Applied Biomaterials
Volume104
Issue number6
DOIs
StatePublished - Aug 1 2016

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Knee prostheses
Sulfhydryl Compounds
Bone
Polymerization
Bone cement
Bone Cements
Composite materials
Surgery
Cements
Benzoyl Peroxide
Benzoyl peroxide
Durapatite
Hydroxyapatite
Strength of materials
Substitution reactions
Hot Temperature
Chemical analysis
Temperature

All Science Journal Classification (ASJC) codes

  • Biomaterials
  • Biomedical Engineering

Cite this

Totaro, Nicholas P. ; Murphy, Zachari D. ; Burcham, Abigail E. ; King, Connor T. ; Scherr, Thomas F. ; Bounds, Christopher O. ; Dasa, Vinod ; Pojman, John A. ; Hayes, Daniel J. / In vitro evaluation of thermal frontally polymerized thiol-ene composites as bone augments. In: Journal of Biomedical Materials Research - Part B Applied Biomaterials. 2016 ; Vol. 104, No. 6. pp. 1152-1160.
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In vitro evaluation of thermal frontally polymerized thiol-ene composites as bone augments. / Totaro, Nicholas P.; Murphy, Zachari D.; Burcham, Abigail E.; King, Connor T.; Scherr, Thomas F.; Bounds, Christopher O.; Dasa, Vinod; Pojman, John A.; Hayes, Daniel J.

In: Journal of Biomedical Materials Research - Part B Applied Biomaterials, Vol. 104, No. 6, 01.08.2016, p. 1152-1160.

Research output: Contribution to journalArticle

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