Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Hills, MI. Last updated April 2026.

What Is Charcot Foot?

Charcot neuropathic arthropathy (Charcot foot) is a progressive, potentially limb-threatening condition in which the bones, joints, and soft tissues of the foot and ankle collapse and fracture in a patient with severe peripheral neuropathy — typically from diabetes. The fundamental mechanism: profound sensory neuropathy eliminates the protective pain sensation that normally limits activity after bone injury, allowing repetitive undetected trauma to cause progressive fracture, dislocation, and joint destruction. A Charcot foot can destroy the normal bony architecture of the foot within weeks to months if not recognized and treated with urgent offloading. Charcot foot is a medical urgency. At Balance Foot & Ankle in Howell and Bloomfield Hills, Michigan, Dr. Tom Biernacki, DPM provides urgent Charcot foot evaluation and management. Call (810) 206-1402 immediately if you suspect this diagnosis.

Who Gets Charcot Foot

Charcot foot occurs almost exclusively in patients with significant peripheral neuropathy — primarily diabetic neuropathy (accounts for 90% of cases), but also neuropathy from alcoholism, chronic renal failure, leprosy, and tabes dorsalis. The average patient has had diabetes for 15+ years with severe neuropathy. It can be triggered by minor trauma (a small sprain, a stumble) that goes unrecognized because of absent pain. A subset of cases follows minor foot surgery. Bilateral Charcot can occur sequentially — approximately 15% of patients with unilateral Charcot eventually develop it in the contralateral foot.

The Critical Diagnostic Window — Acute vs. Chronic

Acute Charcot presents as a hot, swollen, red foot in a diabetic patient — often with no history of significant trauma and remarkably little pain given the degree of inflammation. This is the window for intervention: caught in the acute/active phase, aggressive total contact casting (TCC) to eliminate all load on the destructuring bone can halt or significantly limit the final deformity. Chronic Charcot presents as a fixed deformity — typically a “rocker bottom” foot where the midfoot collapses downward, creating a prominent plantar bony prominence that ulcerates under any footwear pressure. The critical error: acute Charcot is frequently misdiagnosed as infection, deep vein thrombosis, or cellulitis — the diagnosis is often delayed 6–12 weeks while the deformity progresses irreversibly. Any diabetic patient with a hot, swollen foot and no clear infectious source should be evaluated for Charcot immediately.

Diagnosis — Temperature Difference and Imaging

Clinical diagnosis: the affected foot is warmer than the contralateral foot by >2°C (measurable with an infrared thermometer). Skin temperature asymmetry ≥2°C in a diabetic patient is highly sensitive for active Charcot. X-rays in early acute Charcot may appear normal — the “fractures before X-ray” phase. MRI shows bone marrow edema, periarticular edema, and early fractures that are invisible on plain X-ray. MRI is the most sensitive imaging for early Charcot. CT scan is used for surgical planning in chronic cases. The Eichenholtz classification (I–III) stages the radiographic findings from acute fragmentation through coalescence to consolidation.

Conservative Management — Total Contact Casting

Total contact casting (TCC) is the gold standard treatment for acute active Charcot — it distributes weight across the entire plantar surface, eliminating focal pressure on the destructuring bones. The patient is non-weight-bearing or very limited weight-bearing; the cast is changed weekly to accommodate volume reduction. Treatment continues until the foot temperature normalizes (within 1°C of the contralateral foot) and X-rays show coalescence — typically 3–6 months. After resolution, transition to a Charcot Restraint Orthotic Walker (CROW) boot and eventually to custom extra-depth shoes with total contact inserts. Diabetic Charcot patients require lifelong accommodative footwear.

Surgical Management — When Is It Needed?

Surgery for Charcot foot is reserved for: recurrent ulceration over a bony prominence that cannot be adequately accommodated with footwear; unstable deformity preventing ambulation; and infected or osteomyelitic bone requiring debridement. Surgical options include exostectomy (removing the prominent bony projection causing ulceration) and reconstructive arthrodesis (fusion of the collapsed joints to restore a plantigrade, weight-bearing foot). Surgery in Charcot patients carries high complication rates — poor bone quality, impaired wound healing from vascular disease, and infection risk from diabetes all contribute. Surgical intervention should be performed only by surgeons experienced specifically in diabetic Charcot reconstruction.

Red Flags — Seek Same-Day Evaluation

Any diabetic patient with a unilaterally hot, red, swollen foot — even without significant pain — should be evaluated same-day. Do not wait to see if it improves. Do not assume it is a sprain without imaging. Do not continue walking on it. Acute Charcot that is offloaded within the first 2–3 weeks of onset has a dramatically better outcome than Charcot diagnosed after 6–8 weeks of continued ambulation. Early total contact casting can preserve near-normal foot architecture; delayed treatment results in a permanent rocker-bottom deformity.

Charcot Foot Management in Howell & Bloomfield Hills Michigan

Dr. Tom Biernacki, DPM provides urgent diabetic foot evaluation including infrared thermometry, weight-bearing X-rays, and MRI coordination at Balance Foot & Ankle — serving Howell, Brighton, Bloomfield Hills, Pontiac, Troy, Auburn Hills, West Bloomfield, and all Southeast Michigan. Book urgent evaluation or call (810) 206-1402 immediately.

Charcot Foot & Diabetic Neuropathic Arthropathy in Michigan

Charcot foot is a diabetic emergency that can lead to permanent deformity and amputation if not caught early. Our podiatrists provide urgent evaluation for any diabetic patient with a hot, swollen foot and offer comprehensive long-term management.

Learn About Our Diabetic Foot Care Services → | Book Your Appointment | Call (810) 206-1402

Clinical References

1. Rogers LC, et al. The Charcot foot in diabetes. Diabetes Care. 2011;34(9):2123-2129.
2. Wukich DK, Sung W. Charcot arthropathy of the foot and ankle: modern concepts and management review. J Diabetes Complications. 2009;23(6):409-426.
3. Milne TE, et al. Evidence-based clinical pathway for Charcot neuroarthropathy. J Foot Ankle Res. 2015;8:36.

Your Board-Certified Podiatrists

Dr. Tom Biernacki, DPM

Board-Certified · FACFAS

Dr. Carl Jay, DPM

Board-Certified Podiatrist

Dr. Daria Gutkin, DPM

Podiatrist

Dr. Tom Biernacki, DPM

Dr. Tom Biernacki, DPM is a double board-certified podiatrist and foot & ankle surgeon at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has reached over one million views.