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Optimization of WSU Total Ankle Replacement Systems

Elliott, Bradley Jay
http://rave.ohiolink.edu/etdc/view?acc_num=wright1341333609

Abstract Details

2012, Master of Science in Engineering (MSEgr), Wright State University, Biomedical Engineering.
Total ankle arthroplasty (TAR) is performed in order to reduce the pain and loss of ambulation in patients with various forms of arthritis and trauma. Although replacement devices fail by a number of mechanisms, wear in the polyethylene liner constitutes one of the dominating failure modes. This leads to instability and loosening of the implant. Mechanisms that contribute to wear in the liners are high contact and subsurface stresses that break down the material over time. Therefore, it is important to understand the gait that generates these stresses. Methods to characterize and decrease wear in Ohio TARs have been performed in this research. This research utilizes finite element analysis of WSU patented total ankle replacement models. From the FEA results, mathematical models of contact conditions and wear mechanics were developed. These models were used to determine the best methods for wear characterization and reduction. Furthermore, optimization models were developed based on geometry of the implants. These equations optimize geometry, thus congruency and anatomical simulations for total ankle implants.
Tarun Goswami, DSc (Advisor)
Richard Laughlin, MD (Committee Member)
David Reynolds, PhD (Committee Member)
Tarun Goswami, DSc (Committee Member)
Mary Fendley, PhD (Committee Member)
Andrew Hsu, PhD (Other)
157 p.
Biomechanics
Biomechanics; Finite Element Analysis; Total Ankle Replacement

Recommended Citations

Citations

  • Elliott, B. J. (2012). Optimization of WSU Total Ankle Replacement Systems [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1341333609

    APA Style (7th edition)

  • Elliott, Bradley. Optimization of WSU Total Ankle Replacement Systems. 2012. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1341333609.

    MLA Style (8th edition)

  • Elliott, Bradley. "Optimization of WSU Total Ankle Replacement Systems." Master's thesis, Wright State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=wright1341333609

    Chicago Manual of Style (17th edition)

wright1341333609
726
© 2012, all rights reserved.
This open access ETD is published by Wright State University and OhioLINK.