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Charcot Foot - Charcot-Marie-Tooth Disease | Experts in CMT

Charcot Foot

Not the CMT Foot

Charcot foot (shar-KOH), or Charcot neuroarthropathy (noo-ro-ar-THROP-ah-thee), is a destructive disease of the bones and joints of the foot driven by the loss of protective pain sensation. When that sensation is gone, small repeated injuries go unfelt, and the bones can fracture and the joints collapse, sometimes caving the arch into a rocker-bottom shape. It is often confused with the CMT foot, but the two are entirely different: the CMT foot (cavovarus) is a high, rigid, structurally intact deformity built by muscle imbalance, while Charcot foot is bone destruction built by sensory loss. It can occur in CMT, but it is rare, and it is far more common in diabetes. It shares the CMT name only because Jean-Martin Charcot described both. Knowing the term matters mainly so it is not mistaken for the usual CMT foot: a hot, swollen foot in anyone with neuropathy deserves prompt evaluation.

The Dorsal Root

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Jean-Martin Charcot lecturing at the Salpêtrière while comparing anatomical illustrations of a cavovarus Charcot-Marie-Tooth (CMT) foot and a Charcot neuroarthropathy foot, highlighting two different conditions that share the Charcot name.


A Name That Does Too Much Work

Jean-Martin Charcot's name appears throughout medicine, but nowhere does it create more confusion than in the foot. Learn why the CMT foot and Charcot neuroarthropathy, also known as Charcot foot, share a name yet differ in how they develop, appear, and are managed.


Close-up of a doctor’s hand holding a prescription pad while a patient’s wrist is wrapped with metal chains.


When Medicine Lost Its Compass

Evidence failed not because it was wrong, but because it was weaponized. I lived the downstream effects of that failure for more than a decade. This is what happens when medicine forgets that data always ends in a human being.


Illustrated graphic showing large ‘404’ numerals with people interacting with data screens and servers, alongside text reading ‘CMT Genetic Testing Error 404: Gene Not Found’ and ‘Examining Why Less Than Half of All Who Have Charcot-Marie-Tooth Disease Are Not Able to Obtain Genetic Confirmation of Their Disease.


Error 404: Gene Not Found

CMT genetic testing often fails to identify the cause of the disease, even when comprehensive panels are used. Here, we discuss why this happens, what genetic tests can and cannot do, and why a negative result still matters.