Title
Calcium phosphate compatible bone cement: characterization, bonding properties and tissue response
Degree Type
Dissertation
Date of Award
2002
Degree Name
Doctor of Philosophy
Department
Theses & dissertations (Interdisciplinary)
Major
Biomedical Engineering
First Advisor
Thomas D. McGee
Abstract
A novel, inorganic, bone cement, containing calcium phosphate, developed for implant fixation was evaluated. Setting properties were determined over a range of temperatures. The flow of the cement was greatly increased by application of vibration. Changes in the cement during hydration and aging were evaluated. Compressive strength of the cement over time was studied under simulated physiological conditions from 1 hour to 1 year after setting. After 1 day, this cement had equivalent compressive strength to commercially used PMMA cement. The strength was found to increase over 1 month and high strength was maintained up to 1 year.;The shear strength of the cement-metal interface was studied in vitro using a pull-out test. Prepared specimens were stored under physiological conditions and tested at 4 hours, 24 hours, and 60 days. Comparable interfacial shear strength values were found at 4 hours, 24 hours and 60 days for the experimental cement and were not significantly different from values obtained for PMMA cement.;In vivo tissue response was evaluated after cement implantation in the femoral medullary canal in canines. Tissue response and bonding at the cement-bone interface were evaluated at 2, 6, and 12 weeks. Cortical bone was found in direct contact with the OC-cement and was healthy. The strength of the cement-bone interface, measured using a push-out test, was significantly higher for the experimental cement than for commercial PMMA bone cement.
DOI
https://doi.org/10.31274/rtd-180813-13002
Publisher
Digital Repository @ Iowa State University, http://lib.dr.iastate.edu
Copyright Owner
Maria Lynn Roemhildt
Copyright Date
2002
Language
en
Proquest ID
AAI3074116
File Format
application/pdf
File Size
160 pages
Recommended Citation
Roemhildt, Maria Lynn, "Calcium phosphate compatible bone cement: characterization, bonding properties and tissue response " (2002). Retrospective Theses and Dissertations. 556.
https://lib.dr.iastate.edu/rtd/556
Included in
Biomedical Engineering and Bioengineering Commons, Materials Science and Engineering Commons