Charcot foot

What is Charcot foot?

Charcot foot (Charcot neuroarthropathy) happens when nerve damage keeps you from feeling small injuries in your foot. You keep walking on it, and over time the bones can soften, crack, and shift. The joints can loosen or collapse.

Without treatment, the arch can fall into a "rocker-bottom" shape. This puts pressure on parts of the foot not built to carry weight, which can lead to open sores (ulcers).

Who is at risk?

The biggest risk is nerve damage in the feet (peripheral neuropathy). This is most common in people who have had diabetes for many years. Other causes of nerve damage, such as heavy alcohol use, also raise the risk. A minor twist or bump can sometimes start the process.

Signs to watch for

• A foot or ankle that is red
• A foot that feels warmer than the other foot
• Swelling, often in one foot only
• Little or no pain, even though the foot looks wrong
• A change in the shape of the foot or arch

These signs can look like an infection, a sprain, or a blood clot, so an exam and X-rays are important.

Why early care matters

In the early, "active" stage, the bones are weak and can still shift. Protecting the foot now may help keep its shape. Waiting can allow the foot to collapse further, which raises the risk of sores and infections later.

Treatment without surgery

The main goal is to take pressure off the foot (offloading) while the bones settle and heal. This often means:

• A special cast molded to your leg (total contact cast), changed on a regular schedule, or a walking boot
• Limiting how much you walk on the foot, sometimes with crutches, a walker, or a knee scooter
• Regular visits and X-rays to track healing

The active stage often lasts several months. How long depends on your foot, your health, and how well the foot can be protected. After that, many people move into a custom brace or boot (such as a Charcot restraint orthotic walker, or CROW), then custom shoes and inserts.

When surgery helps

Surgery may be an option when the foot or ankle is unstable, when the shape makes bracing or shoes hard to use, or when sores keep coming back over a bony spot. Surgery may remove a bony bump or rebuild (reconstruct) the foot with plates, screws, or rods. Some reconstructions use an outside frame (external fixator) that holds the bones in place while they heal, especially when skin or infection makes inside hardware risky. Recovery is often long and depends on your health.

Daily foot checks

Look at both feet every day, using a mirror if needed. Check for redness, warmth, swelling, cuts, or blisters. Do not walk barefoot.

How Dr. Nafal can help

Dr. Nafal is board qualified by the American Board of Foot and Ankle Surgery in Foot Surgery and in Reconstructive Rearfoot and Ankle Surgery. His focus includes reconstructive rearfoot and ankle surgery and limb salvage. He explains every option in plain words, including options that don't involve surgery.

Common questions

Why doesn't my foot hurt if something is wrong?

Nerve damage can dull pain signals, so Charcot foot can get worse without warning. Changes in color, warmth, swelling, or shape are reasons to be checked.

Will I need surgery?

Many people are treated with casting, bracing, and custom shoes. Surgery is usually considered when the foot is unstable or sores keep coming back.

Can Charcot foot happen in the other foot?

Yes, it can. That is one reason daily checks of both feet and regular foot exams are so important.