0
Frontiers Abstracts

Computational Framework for Determining Patient-Specific Total Knee Arthroplasty Loading

[+] Author and Article Information
Markus A. Wimmer

Rush University Medical Center,
Chicago, IL

Manuscript received September 19, 2013; final manuscript received October 16, 2013; published online December 5, 2013. Editor: Gerald E. Miller.

J. Med. Devices 7(4), 040904 (Dec 05, 2013) (1 page) Paper No: MED-13-1215; doi: 10.1115/1.4025765 History: Received September 19, 2013; Revised October 16, 2013

The purpose of this work is to describe a computational framework for predicting total knee arthroplasty loads which are necessary for accurate preclinical testing of implant designs. Inputs required include patient knee joint kinematics, and implant type, size, and physiological alignment. Computational models used in the framework include the calculation of knee joint kinematics and kinetics, prediction of the contact path, a model to determine muscle forces, and a force model to obtain parametric solutions for implant forces. The resulting knee implant forces have been validated in two studies, and in both the model accurately predicted differences in knee joint loading. To date, implant contact forces have been predicted for 35 patients with four different implant types. Forces have been calculated for walking, chair, and stair activities.

Copyright © 2013 by ASME
Your Session has timed out. Please sign back in to continue.

References

Kurtz, S., Ong, K., Lau, Ed., Mowat, F., and Halpern, M., 2007, “Projections of Primary and Revision Hip and Knee Arthroplasty in the United States From 2005 to 2030,” J. Bone Joint Surg. Am., 89(4), pp. 780–785. [CrossRef] [PubMed]
Wier, L. M., Pfuntner, A., Maeda, J., Stranges, E., Ryan, K., Jagadish, P., Collins Sharp, B., and Elixhauser, A., 2011, HCUP Facts and Figures: Statistics on Hospital-Based Care in the United States 2009, Agency for Healthcare Research and Quality, Rockville, MD, available at: http://www.hcup-us.ahrq.gov/reports.jsp
Losina, E., and Katz, J. N., 2012, “Total Knee Arthroplasty on the Rise in Younger Patients: Are We Sure That Past Performance Will Guarantee Future Success?,” Arthritis Rheum., 64(2), pp. 339–341. [CrossRef] [PubMed]
Crowninshield, R. D., Rosenberg, A. G., and Sporer, S. M., 2006, “Changing Demographics of Patients With Total Joint Replacement,” Clin. Orthop. Relat. Res., 443, pp. 266–272. [CrossRef] [PubMed]
Lundberg, H. J., Foucher, K. C., and Wimmer, M. A., 2009, “A Parametric Approach to Numerical Modeling of TKR Contact Forces,” J. Biomech., 42(4), pp. 541–545. [CrossRef] [PubMed]
Lundberg, H. J., Foucher, K. C., Andriacchi, T. P., and Wimmer, M. A., 2012, “Direct Comparison of Measured and Calculated Total Knee Replacement Force Envelopes During Walking in the Presence of Normal and Abnormal Gait Patterns,” J. Biomech., 45(6), pp. 990–996. [CrossRef] [PubMed]
Lundberg, H. J., Knowlton, C., and Markus A. Wimmer, M. A., 2013, “Fine Tuning Total Knee Replacement Contact Force Prediction Algorithms Using Blinded Model Validation,” ASME J. Biomech Eng., 135, p. 021015. [CrossRef] [PubMed]
Lundberg, H. J., Ngai, V., and Wimmer, M. A., 2012, “Comparison of ISO Standard and TKR Patient Axial Force Profiles During the Stance Phase of Gait,” J. Eng. Med., 226(3), pp. 227–234. [CrossRef]

Figures

Tables

Errata

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In