COVID-19 UPDATE: Regenexx is committed to the health and safety of our patients. You may now be seen in clinic or via telemedicine for virtual/online or phone visits.
LEARN MORE
Our physicians are available via telemedicine to continue to give you the care you need during this difficult time. Learn more.

Foot Arch Knee Pain? Research Links Your Foot Navicular Bone Position to Your Knee

By /

Receive a Regenexx® Patient Info Packet by email and learn why it's a superior regenerative solution.

By submitting the form, you are agreeing that you read and consent to our Privacy Policy. We may also contact you via email, phone, and other electronic means to communicate information about our products and services. We do not sell, or share your information to third party vendors.

foot arch knee pain

Can you have foot arch knee pain? Yesterday I watched the inaugural Boulder Iron man Race. As the runners filed by, I couldn’t help but notice their gait. In some, according to a new study, not paying attention to a little bone in their feet may be frying the cartilage in their knees.

First, as I watched this awe inspiring race yesterday, I saw more running styles than I could count. There was some beautiful symmetry in many of the high level participants and some disturbing asymmetry in many others. To learn more about why this asymmetry will likely predict which of these triathletes get injured in the future and which may be having a hard time walking today, read our practice’s e-book Orthopedics 2.0.

Second, this morning I’d like to focus on running problems that begin in the feet. The navicular is a bone at the top of the arch or “keystone” that holds up your foot, but most runners have never heard of this little bone. The arch in your foot is the shock absorber that allows you to have “spring” in your step. So as you might imagine, those runners with a strong arch and a well functioning navicular bone use less energy when they run, because the arch stores that energy efficiently and then provides it back in the form of that “spring”.

The navicular bone can “drop” as the arch collapses with standing or running and is associated with excessive pronation of the foot. This can happen in the worse cases due to structural changes in the bone, but more commonly it’s due to atrophy of the muscles that hold up the arch. The navicular bone is in red in the picture above. Note that there are lines going horizontally under the arch that represent the muscles and ligaments (including the plantar fascia) that support the arch.

The new study looked at how much this bone dropped while the foot hit the ground running versus bio mechanical changes in the foot, ankle, and knee. Not surprisingly, small amounts of drop in the navicular (and arch) had profound impacts all the way up to the knee. In a race like an Iron Man triathlon, the foot strikes the ground more than 25,000 times, so all of these extra forces add up.

What can you do if your arch collapses when you run? For starters, simple foot exercises to strengthen the intrinsic foot muscles that help hold up the arch is a good start. Second, we see a lot of patients with low level nerve irritation in their low back as a cause of intrinsic foot muscle atrophy, so your low back may also need to be treated. Finally, if all else fails, orthotics may be an option.

The upshot? The navicular bone is a big deal. It should move normally and the arch that it structurally supports shouldn’t collapse when you stand or run. If you have knee problems when running, taking a look at how this arch behaves with running is something to consider as a possible cause.

Is Regenexx Right For You?

Request a free Regenexx Info Packet

REGENEXX WEBINARS

Learn about the #1 Stem Cell & Platelet Procedures for treating arthritis, common joint injuries & spine pain.

Join a Webinar

RECEIVE BLOG ARTICLES BY EMAIL

Get fresh updates and insights from Regenexx delivered straight to your inbox.

Subscribe to the Blog

CONTACT US

9035 Wadsworth Pkwy #1000
Westminster, CO 80021
888-525-3005

FOLLOW US

Copyright © Regenexx 2020. All rights reserved. | Privacy Policy

*DISCLAIMER: Like all medical procedures, Regenexx® Procedures have a success and failure rate. Patient reviews and testimonials on this site should not be interpreted as a statement on the effectiveness of our treatments for anyone else.

Providers listed on the Regenexx website are for informational purposes only and are not a recommendation from Regenexx for a specific provider or a guarantee of the outcome of any treatment you receive.

LinkedIn
Email