A Closer Look At The Principles Of Fluid Dynamics As They Relate To Orthoses

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Dennis Kiper, DPM

6. Baxter D. The ideal running orthosis. Biomechanics. 1996; 3(3):42.

7. Information from William A. Taylor, PhD, Emeritus Professor of Physics, Department of Physics and Astronomy, California State University, Los Angeles.

8. Landorf K, Keenan AM. Effectiveness of foot orthoses to treat Plantar Fasciitis. Arch Intern Med. 2006; 166:1305-1310.

9. Pfeffer G, Bacchetti P, Deland J, et al. Comparison of custom and prefabricated orthoses in the initial treatment of proximal plantar fasciitis. Foot Ankle Int. 1999; 20(4):214-21.

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Simon K. Spooner PhDsays: October 3, 2012 at 11:58 am

Although I thought this article was generally weak and had "cherry-picked" the literature along the way, I do believe that fluid dynamic technology could be successfully incorporated into foot orthoses. I don't believe the present iteration which Dr. Kiper markets is necessarily the best way to incorporate that technology, but I should be happy to work with this technology in the development of more advanced foot orthoses.

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Dennis Kiper, DPMsays: October 12, 2012 at 8:06 pm

Dr. Spooner,

I am curious about a couple of things you said. First, you stated that the article was “weak"? What do you mean by weak? Can you be more specific? Then you stated that I had “cherry-picked” the literature. Doesn't one normally try to support the statements and concepts made by using the research of others? I think I did that. I articulated the mechanics of motion and biomechanics, and I've indicated several points of principles of physics applied to these orthoses.

There isn't any science basis for traditional orthoses that I'm aware of. Perhaps that has changed. Can you enlighten me on this?

Why don't you address these things? Why don't you pick apart what I've said specifically and offer us a more constructive criticism rather than be so vague?

Lastly, you mentioned that you'd be glad to work with the technology in the development of more advanced orthoses. Perhaps you're not familiar with the Pedobarograph, but for an experienced clinician in biomechanics, I think it is simple to read. After all, when I first saw this technology and ran tests with Dr. Krinsky, we recognized right away that it shows a very improved gait efficiency with the orthoses versus without the orthoses. How much more advanced would you make this orthotic based on that?

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