Charcot Foot 2026: Diagnosis & Treatment | DPM

Related Conditions

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

What Is an Interdigital Neuroma?

An interdigital neuroma (commonly called Morton’s neuroma, though Morton described a different condition) is a benign thickening of the nerve tissue in the ball of the foot, most commonly in the third interspace—the space between the third and fourth toes. The interdigital nerve becomes compressed and irritated between the metatarsal heads, causing perineural fibrosis (scar tissue formation around the nerve) that creates a palpable, painful thickening. The condition affects women more often than men (reflecting high-heeled and narrow-toed shoe wear) and typically presents in adults over 30. Bilateral neuroma is possible but less common than unilateral presentation.

Symptoms

The classic symptom is burning, shooting, or stabbing pain in the ball of the foot, often radiating into the third and fourth toes (or second and third toes for second interspace neuromas). Patients frequently describe the sensation of walking on a marble or a bunched sock. Symptoms are characteristically worse in tight, narrow, or high-heeled footwear and typically relieved within minutes of removing the shoe and rubbing the foot. Numbness or tingling in the affected toes is common. On examination, lateral squeeze of the forefoot (compressing the metatarsal heads medially and laterally) combined with direct plantar pressure on the affected interspace often reproduces the pain and sometimes produces a palpable click (Mulder’s click).

Conservative Treatment

Footwear Modification

Eliminating tight, narrow, or high-heeled footwear is the single most impactful conservative intervention. Shoes with a wide toe box that does not compress the metatarsal heads reduce interdigital nerve compression. Low heels reduce weight shift to the forefoot. Many patients experience significant symptom reduction within weeks of consistent footwear modification alone. Barefoot time (at home on padded surfaces) further reduces nerve compression.

Metatarsal Pads and Orthotics

A metatarsal pad placed just proximal to (behind) the metatarsal heads spreads the metatarsals slightly apart and reduces nerve compression in the interspace. This is effective for many patients as a first-line orthotic intervention. Custom orthotics with a metatarsal dome extension provide more precise placement and can address contributing biomechanical factors. The pad should be positioned correctly—too distal (over the metatarsal heads) adds pressure rather than relieving it.

Corticosteroid Injection

Corticosteroid injection into the affected interspace under ultrasound guidance provides significant symptom relief in 60–80% of patients in the short term. Multiple injections (typically a series of 2–3) are often needed for sustained relief. Risks include fat pad atrophy from repeated injections and, rarely, plantar plate weakening. Ultrasound guidance improves accuracy and outcomes compared to landmark-based injection. Many patients who respond to injection achieve long-term relief, particularly when combined with footwear modification.

Sclerosing Alcohol Injection

Dilute ethanol (alcohol) injection directly into the neuroma causes progressive nerve degeneration (sclerosis) over a series of 4–7 weekly injections. Studies report 70–80% pain reduction in appropriate patients. It is an alternative for patients who have not responded adequately to corticosteroid injections or who wish to avoid surgery. Ultrasound guidance is used for accurate delivery.

Surgical Treatment: Neurectomy

When conservative measures including at least one injection series fail after 3–6 months, surgical excision (neurectomy) of the thickened nerve segment is indicated. Neurectomy is highly effective—75–85% of patients report significant improvement. The procedure is performed through a dorsal (top of foot) incision under local anesthesia, typically as an outpatient. Recovery involves 2–4 weeks in a surgical shoe with return to normal footwear in 4–6 weeks. Permanent numbness in the affected web space is expected and is generally not bothersome to patients. Stump neuroma (recurrence at the cut nerve end) occurs in a small percentage of cases.

In-Office Treatment at Balance Foot & Ankle

If home care isn’t resolving your Morton’s neuroma, a visit with a board-certified podiatrist is the fastest path to accurate diagnosis and a personalized plan. At Balance Foot & Ankle Specialists, Dr. Tom Biernacki, Dr. Carl Jay, and Dr. Daria Gutkin offer same-day and next-day appointments at both our Howell and Bloomfield Hills offices. We perform on-site diagnostic ultrasound, digital X-ray, conservative care, advanced regenerative treatments, and minimally invasive surgery when indicated.

Call (810) 206-1402 or request an appointment online. Most insurance plans accepted, including Medicare, Blue Cross Blue Shield, Aetna, Cigna, and United Healthcare.

Frequently Asked Questions

Medical References & Sources

• PubMed Research — Morton’s Neuroma Treatment Outcomes
• PubMed Research — Sclerosing Injection for Neuroma
• American Orthopaedic Foot & Ankle Society — Neuromas

Dr. Tom Biernacki, DPM is a board-certified podiatric surgeon at Balance Foot & Ankle in Howell and Bloomfield Hills, Michigan. He diagnoses and treats interdigital neuromas with footwear counseling, orthotics, corticosteroid and alcohol injection, and surgical neurectomy.

Differential Diagnosis: What Else Could It Be?

Several conditions share symptoms with Morton’s Neuroma and are commonly misdiagnosed in the first office visit. Considering these alternatives is part of every Balance Foot & Ankle exam:

• Capsulitis (2nd MTP). Pain at 2nd-toe base rather than between toes; drawer test positive.
• Stress fracture. Single-point tenderness over a metatarsal shaft, not between toes.
• Freiberg’s infraction. AVN of metatarsal head, classic radiograph flattening.

If your symptoms don’t fit the textbook pattern, ask your podiatrist which differentials they ruled out — that conversation often shortcuts months of trial-and-error treatment.

Most Common Mistake We See

The most common mistake we see is: Adding a cushioned insole instead of a metatarsal pad. Fix: place the metatarsal pad PROXIMAL to (behind) the metatarsal heads — not directly under them.

Warning Signs That Need Same-Day Care

Dr. Tom’s Top 3 — The Premium Foot Pain Stack (2026)

If you only buy three things for foot pain, get these. PowerStep + CURREX orthotics correct the underlying foot mechanics, and Dr. Hoy’s pain gel delivers fast topical relief. This is the exact stack Dr. Tom Biernacki, DPM gives his Michigan podiatry patients on visit one — over 10,000 patients have used this exact combination.

What is Foot pain?

Foot pain is a common foot/ankle condition that affects mobility and quality of life. Understanding the underlying cause is the first step in successful treatment. Our podiatrists at Balance Foot & Ankle perform a hands-on biomechanical exam, review your activity history, and use diagnostic imaging when appropriate to identify the root cause—not just treat the symptom. Many patients have been told to “rest and ice” without a deeper diagnostic workup; our approach is different.

Symptoms and warning signs

Common signs of foot pain include pain that worsens with activity, morning stiffness, swelling, tenderness when palpated, and difficulty bearing weight. If you experience sudden severe pain, inability to walk, visible deformity, numbness or color change, contact our office the same day or visit urgent care—these can signal a more serious injury such as a fracture, tendon rupture, or vascular compromise. Diabetics with any foot wound should seek same-day care.

Conservative treatment options

Most cases of foot pain respond to non-surgical care: structured rest, supportive footwear changes, custom orthotics, targeted stretching and strengthening protocols, anti-inflammatory medications when medically appropriate, and in-office procedures such as ultrasound-guided injections. We also offer advanced therapies including MLS laser therapy, EPAT/shockwave, regenerative injections, and image-guided procedures. Treatment is sequenced from least invasive to most invasive, and we explain the rationale at every step.

When is surgery considered?

Surgery is reserved for cases that fail 3-6 months of well-structured conservative care, when there is structural pathology (severe deformity, complete tear, advanced arthritis), or when imaging shows damage that will not heal without intervention. Our surgeons have performed 3,000+ foot and ankle procedures and prioritize minimally-invasive techniques whenever appropriate. We discuss recovery timelines, return-to-activity milestones, and realistic outcome expectations before any procedure is scheduled.

Recovery timeline and prevention

Recovery from foot pain varies based on severity and chosen treatment path. Conservative cases often improve within 4-8 weeks with consistent adherence to the protocol. Post-procedural recovery may range from a few days (in-office procedures) to several months (reconstructive surgery). Long-term prevention involves footwear assessment, activity modification, structured strengthening, and regular check-ins with your podiatrist if you have a history of recurrence. We provide written home-exercise plans and digital follow-up support.

Frequently Asked Questions

When should I see a podiatrist?

See a podiatrist if: foot or ankle pain has lasted more than 2–4 weeks without improvement, you’re changing your gait to avoid pain, you have an open wound or sore that isn’t healing, you notice nail discoloration or thickening, you have diabetes and any foot concern, or pain is severe enough to wake you at night. Most foot conditions are easier and cheaper to treat early — what starts as a minor issue can become a surgical problem with months of delay.

What is the difference between a podiatrist and an orthopedic surgeon?

Podiatrists (DPM — Doctor of Podiatric Medicine) specialize exclusively in the foot, ankle, and lower leg. Orthopedic surgeons (MD/DO) have broader musculoskeletal training but variable foot/ankle subspecialization. For foot and ankle-specific problems, a podiatrist often has more focused training and experience. For injuries involving the leg above the ankle, complex pediatric cases, or multi-level reconstruction, orthopedic consultation may be appropriate. We frequently co-manage patients with orthopedic colleagues.

How do I know if my foot pain is serious?

Signs that warrant same-day or next-day evaluation: severe pain that appeared suddenly without clear cause, swelling, redness, and warmth that appeared suddenly (possible gout, infection, or Charcot fracture), an open wound that looks infected (redness spreading, pus, warmth), inability to bear weight, or any foot problem in a diabetic patient. Pain that’s been present for weeks and is stable is important but not an emergency — schedule within 1–2 weeks.

Can foot problems cause back and knee pain?

Yes — this is a kinetic chain effect. Abnormal foot mechanics (overpronation, supination, leg length discrepancy) cause compensatory changes in knee, hip, and lumbar alignment. Roughly 30% of patients presenting to our clinic with knee pain have a treatable foot-level biomechanical cause. Correcting foot mechanics with orthotics or appropriate footwear often provides significant knee and back relief. If you have chronic knee or back pain and haven’t had your foot mechanics evaluated, it’s worth a consult.

Are orthotics worth it?

For the right conditions, yes — custom orthotics are among the most cost-effective interventions in podiatry. They’re most effective for: plantar fasciitis, flat feet with secondary knee/back pain, leg length discrepancy, metatarsalgia, posterior tibial tendon dysfunction, and diabetic foot pressure management. Quality OTC orthotics ($35–60) resolve symptoms for 60% of patients with mild-to-moderate conditions. Custom orthotics are appropriate when OTC options have failed or when the biomechanical problem is complex. We cast custom orthotics in-office.

How do I choose the right running shoes?

Start with your foot type (flat, neutral, high arch) and running pattern (overpronator, neutral, supinator). Flat feet and overpronators do best in stability or motion-control shoes. Neutral feet do well in neutral-cushioned shoes. High arches need maximum cushioning with flexible soles. Always buy running shoes at the end of the day (foot swelling peaks then), get properly fitted by a specialist, and replace every 300–500 miles. If you’ve been injured repeatedly, a gait analysis can identify the mechanical flaw driving your injury pattern.

What is the difference between a sprain and a fracture?

A sprain is a ligament injury (the tissue connecting bones); a fracture is a break in the bone itself. Both can occur with the same trauma (ankle roll, fall). The old test — ‘if you can walk, it’s not broken’ — is wrong; many fractures are initially weight-bearable. Key differences: a fracture typically produces localized bone tenderness along the bone itself, while a sprain is tender over the ligament. X-ray is the standard to differentiate. High-grade sprains without proper treatment can be as disabling as fractures.

How do I prevent foot and ankle injuries?

The four most impactful prevention strategies: (1) Supportive, appropriately fitted footwear for your foot type and activity. (2) Gradual activity progression — the 10% rule (never increase weekly mileage or intensity by more than 10%). (3) Regular calf and ankle mobility work. (4) Strengthening the posterior tibial tendon, peroneals, and intrinsic foot muscles. Most overuse injuries are preventable; most acute injuries are not — but ankle sprain recurrence (60–70% without rehab) is prevented by balance and proprioception training.