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Grody Feet and Heel Cracks
By Jeffrey E. Keller MD
Published: 01/12/2015

Sneaker

Back when I worked in the ER, we often would have patients come to the ER who were homeless or otherwise had not been taking care of themselves. Of particular concern was their feet—many had not removed their shoes for days or even weeks. When these shoes were removed, we often were confronted by a dreaded medical malady: Toxic Sock Syndrome. These feet could be unbelievably odiferous—I have seen hardened paramedics retch.

So we had to be careful. If a patient was suspected of having Toxic Shock Syndrome, shoes and socks would be quickly removed into a plastic bag and the feet immediately washed and covered with clean slippers.

That was about the end of ER involvement with poorly-cared-for feet. As an ER Doc, I never had to do much with the underlying foot disease.

The situation has been reversed now that I work in jails and prisons. I don’t have to deal with Toxic Sock Syndrome anymore. (I’m sure the booking deputies do, though. Bless them). Instead, a day or two later I typically am confronted in the jail medical clinic with the grody feet themselves.

The medical term for such feet is PalmoPlantar Keratoderma or PPK.

It turns out that not everybody who neglects their feet gets PPK grody foot disease. Of those who do, some are born with the tendency, and this, of course, is called hereditary PPK. These patients will tell you “I’ve always had problems with my feet like this.”

Of more interest to us are patients with “Acquired PPK.” The list of diseases that can be the underlying cause of grody feet includes diabetes, hypothyroidism, malnutrition, fungal infections, and autoimmune problems, like AIDS. It is important to think of this because many patients with grody feet have not yet been diagnosed. They commonly are the type of patients who do not have an outside doctor. Sometimes, being in jail is the first time they have had access to a functional health care system. Many, if not most, patients with grody feet need a work up.

Also, as you might guess from the name PalmoPlantar keratoderma, many of these patients also have the same problem with the skin of their hands. If a patient comes to medical clinic with hands like this, be sure to look at their feet, too.

Treatment

The basic strategy for the treatment of PPK grody feet is to get rid of the clinging excess skin. It turns out that there are two ways of doing this. My favorite dermatology consultant (Thanks Neelie!) recommends slathering the feet with 20% urea cream once or twice a day. This works very well in my experience.

My favorite podiatry consultant (thanks Dr. Cooper!) prefers to use instead Ammonium lactate 12%, again applied BID. Either one works well. Ammonium lactate is a little cheaper but neither are expensive.

Heel Fissures

A related problem to PPK is when excess skin builds up on the heel and then cracks deeply.

I have had such heel cracks myself, and they hurt, I can tell you. Complaints about heel cracks turn up frequently in correctional medicine clinics.

According to Neelie and Dr. Cooper, you can use 20% urea or 12% ammonium lactate for these as well. The only difference is that you will want to add an occlusive dressing after applying the urea. In the “real world,” a piece of plastic wrap even held in place with a sock or ACE wrap works great as an occlusive dressing. Saran Wrap, though, isn’t an option in most correctional facilities.

Another option, though, that you can use for deep heel cracks is cyanoacrylate, better known as super glue and marketed medically as Dermabond. Cyanoacrylate is how I have treated my own heel cracks as well as similar painful cracks on my fingertips and even deeper abrasions on my palms. It works very well!

Here are two references to give some legitimacy to this longstanding trick-of-the-trade: Superglue for the treatment of heel fissures and A review of cyanoacrylate liquid skin protectant and its efficacy on pedal fissures. This second article even has pictures showing how to apply the Dermabond (you probably don’t need the help. It’s pretty easy).

Summary

Nasty, hyperkeratotic feet are a common sight in jails.

  1. When you see them, think about underlying disease processes that can precipitate PPK, like malnourishment, diabetes, hypothyroidism and immunodeficiency.
  2. Treat these feet with 20% urea or 12% ammonium lactate slathered on BID.
  3. You can also use 20% urea or 12% ammonium lactate for deep heel fissures.
  4. An alternative therapy for heel fissures is cyanoacrylate liquid.
Do you have experience with Grody feet in your facility? Please comment.

Corrections.com author, Jeffrey E. Keller is a Board Certified Emergency Physician with 25 years of practice experience before moving full time into the practice of Correctional Medicine. He is the Chief Medical Officer of Centurion. He is also the author of the "Jail Medicine" blog

Other articles by Keller



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