Charcot Foot

What is Charcot Foot?

Charcot foot, also known as Charcot arthropathy, is a serious and progressive condition that affects the bones, joints, and soft tissues of the foot. It is most commonly seen in individuals with diabetes and peripheral neuropathy, where nerve damage leads to a loss of sensation in the feet. Without the ability to feel pain, minor injuries and fractures can go unnoticed, allowing continued weight-bearing that weakens the bones. Over time, this can lead to bone fractures, joint dislocations, and severe foot deformities.

As Charcot foot progresses, the arch may collapse, causing a characteristic “rocker-bottom” deformity, which further increases the risk of ulcers, infections, and even amputation if left untreated. Early detection and intervention are critical to prevent permanent damage. Immobilisation, offloading, and podiatric care can help stabilise the foot and reduce the risk of severe complications.

Causes & Risk Factors of Charcot Foot

Charcot foot develops when the bones and joints in the foot weaken due to nerve damage (neuropathy), leading to fractures and deformities. Several factors contribute to the progression of this condition, with diabetes and peripheral neuropathy being the most common causes.

Diabetes and Peripheral Neuropathy

Uncontrolled diabetes can lead to peripheral neuropathy, a condition that damages the nerves responsible for sensation in the feet.
As a result, people with neuropathy do not feel pain from minor injuries, fractures, or excessive pressure, allowing them to continue walking on an already weakened foot.
Without pain as a warning sign, the bones progressively break down, increasing the risk of joint dislocations and severe deformities.

Repetitive Stress & Trauma

Even small, repetitive injuries, such as minor sprains or stress fractures, can trigger Charcot foot.
Since individuals with neuropathy may not notice or respond to these injuries, they continue weight-bearing, causing progressive bone damage.
Unstable joints and weakened bones eventually collapse under pressure, leading to long-term foot deformities.

Poor Circulation

Diabetes can also impair blood circulation, reducing the body’s ability to heal injuries.
Poor circulation results in slower bone healing, making the foot more vulnerable to fractures and progressive breakdown.
This also increases the risk of ulcers and infections, which can complicate Charcot foot further.

Other Risk Factors

While diabetes is the most common cause, other factors can also increase susceptibility to Charcot foot, including:

Obesity – Excess body weight places greater stress on the bones and joints, accelerating the breakdown process.
Prolonged standing or excessive walking – Increased weight-bearing can trigger Charcot changes in at-risk individuals.
Previous foot injuries – A history of fractures or sprains may contribute to structural weakness in the foot, increasing the likelihood of developing Charcot foot.

Since Charcot foot is often misdiagnosed in its early stages, recognising risk factors and seeking prompt podiatry care from our team at East Gosford Podiatry can help prevent severe complications.

Symptoms & Stages of Charcot Foot

Charcot foot progresses through distinct stages, often without significant pain due to nerve damage. Recognising early symptoms is critical to preventing permanent deformity and complications.

Early Symptoms (Stage 1: Development/Fragmentation)

Swelling, warmth, and redness – The affected foot may appear inflamed and swollen, often mistaken for an infection or gout.
Mild discomfort but no significant pain – Due to neuropathy, many individuals do not feel the pain associated with fractures and joint damage.
Softening of bones (osteopenia) – The bones become weaker and more susceptible to fractures.

Progressive Symptoms (Stage 2: Coalescence)

Bone weakening, fractures, and joint dislocations – As the condition worsens, the bones begin to break down and shift, leading to instability.
Visible foot deformities – The foot shape begins to change, and in severe cases, the arch may collapse, resulting in a “rocker-bottom” deformity where the middle of the foot bulges downward.
Loss of joint function – As the bones fragment and heal incorrectly, the joints may become rigid and misaligned.

Advanced Symptoms (Stage 3: Reconstruction/Remodelling)

Severe instability – The foot may lose its structural integrity, making walking difficult or impossible.
Chronic foot ulcers and infection risk – Pressure points from deformities increase the likelihood of skin breakdown, sores, and ulcers.
Increased risk of amputation – If Charcot foot is left untreated or complications arise (such as severe infections or non-healing wounds), amputation may become necessary.

How a Podiatrist Can Help with Charcot Foot

Podiatrists play a crucial role in early detection, management, and long-term care for individuals with Charcot foot.

Early Diagnosis & Monitoring

Regular diabetic foot assessments to identify early warning signs before deformity occurs.
Monitoring skin temperature, swelling, and structural changes to detect developing Charcot foot.
X-rays and imaging may be used to confirm bone weakening or fractures.

Immobilisation & Offloading

Protecting the foot in the early stages is critical to preventing further damage. Podiatrists may recommend:

Total Contact Casting (TCC) – A specialised cast that distributes weight evenly and stabilises the foot during healing.
Non-weight-bearing strategies – The use of crutches, walkers, or wheelchairs to reduce pressure and prevent worsening fractures.

Custom Orthotics & Specialised Footwear

Prescription orthotics help redistribute weight and reduce pressure points, preventing further complications.
Custom footwear is designed to accommodate foot deformities and provide the necessary support to reduce ulcer risk and improve mobility.

Nail Disorders

Nail disorders such as fungal nail infections, ingrown toenails, and thickening of the nails are common in the elderly. They can be caused by a range of factors, including injury, poor circulation, and diabetes.

Thickened nails can be harder to cut and care for, and ingrown toenails can be very painful and can lead to infection if not treated promptly. Fungal nail infections can cause the nails to become discoloured, thick, and brittle, and can be difficult to treat.

Referral for Surgical Intervention (If Needed)

In cases where deformity, severe instability, or chronic ulcers develop, surgical intervention may be required. Procedures may include:

Bone realignment (osteotomy) – To improve foot function and reduce pressure points.
Joint fusion (arthrodesis) – To stabilise joints affected by Charcot foot.
Reconstruction surgery – For severe deformities that impair mobility.

Ulcer & Wound Care

Regular skin assessments to monitor for early signs of ulcers or sores.
Wound management for patients who develop pressure ulcers, reducing infection risk.

A podiatrist is key to managing Charcot foot at every stage, from early detection to long-term prevention and treatment. Seeking prompt care can prevent severe complications and preserve mobility.

Long-Term Management & Prevention

Managing Charcot foot requires ongoing care and preventative strategies to minimise complications and maintain mobility. Long-term management focuses on preventing further damage, reducing pressure on the foot, and controlling underlying conditions like diabetes.

Routine Foot Checks

Regular podiatric assessments are crucial for early detection of temperature changes, swelling, or structural changes in the foot.
People with diabetes or neuropathy should inspect their feet daily for redness, wounds, or changes in shape.

Diabetes & Neuropathy Management

Controlling blood sugar levels helps slow the progression of neuropathy, reducing the risk of Charcot foot development.
Routine neuropathy screenings can help identify reduced sensation in the feet before complications arise.

Protective Footwear & Orthotics

Custom orthotics and specialist footwear provide support, reduce pressure points, and accommodate foot deformities.
Extra-depth and shock-absorbing shoes help prevent ulcers and reduce the risk of further fractures.
Offloading devices (such as charcot restraints or custom braces) may be necessary for long-term foot protection.

Education on Foot Care

Individuals at risk should be trained in self-monitoring, checking for swelling, redness, or temperature changes that may indicate Charcot foot.
Avoiding walking barefoot and wearing protective footwear can prevent minor injuries that may go unnoticed due to neuropathy.

When to See a Podiatrist

Charcot foot is a medical emergency in its early stages, as delayed diagnosis can lead to irreversible deformity and serious complications.

Signs That Require Urgent Podiatric Assessment

Unexplained swelling, warmth, or redness in one foot (even without pain).
Changes in foot shape or increased instability while walking.
Ulcers, pressure sores, or signs of infection developing on the foot.
Persistent swelling or inflammation that does not improve with rest.

The Importance of Early Intervention

Seeking early podiatric care can prevent progressive fractures, deformities, and ulcers.
Without intervention, Charcot foot can lead to severe complications, including amputation.

Book an Appointment Today

If you have diabetes, neuropathy, or unexplained foot swelling, early intervention is critical.
Book an appointment online for a comprehensive foot health assessment and expert management of Charcot foot.

We Accept Patients from all over the Central Coast

If you are in East Gosford and surrounding suburbs and are in need of a Podiatry appointment due to lower limb or feet issues you may need orthotics. Please contact our clinic on (02) 4325 0600