Foot & Ankle Arthritis
In Singapore

Persistent joint pain in the foot or ankle can affect every step you take. Whether you enjoy morning walks and notice ongoing ankle stiffness after exercise, or have started avoiding stairs because of the recurring pain, these symptoms deserve proper attention. Arthritis affecting the foot and ankle is more common than many people realise, and it is not limited to older adults.

At ACME Orthopaedics, assessment begins with understanding your symptoms— activity levels, daily demands, and treatment goals. Based on a clinical evaluation, treatment options may include physiotherapy, orthotic devices, activity modification, medication, or surgery where clinically appropriate.

This page provides general information about foot and ankle arthritis to help you understand your condition and the available management options. If you have symptoms or concerns, consider seeking a medical assessment for personalised advice.

Dr Zackary Chua

Senior Consultant Orthopaedic Surgeon (Adult & Paeds)

MBBS (Aus)MMed (SG)MRCS (Glasgow)FRCSEd (Orth)

Types Causes & Risks Symptoms When to see a Doctor Diagnosis Treatment Comparison Prevention FAQ

What Is Foot and Ankle Arthritis?

Foot and ankle arthritis is the inflammation and progressive breakdown of cartilage within the joints of the foot and ankle complex. Cartilage is the smooth, resilient tissue lining the ends of bones, enabling them to move against one another with minimal friction. When cartilage deteriorates through wear and tear, injury, or autoimmune disease, bone contacts bone directly, producing pain, stiffness, and reduced mobility.

The foot is anatomically complex, containing 33 joints in total. The ankle consists of three principal articulations: the tibiotalar joint (where the tibia meets the talus), the subtalar joint (which controls side-to-side motion), and the syndesmosis (the junction between the tibia and fibula). Any of these joints can develop arthritis, and in some patients, several are affected simultaneously.

Key statistics on foot and ankle arthritis:

33 Joints in the foot and ankle alone that can be affected by arthritis

70–80% Of ankle arthritis cases attributed to previous injury (post-traumatic)

3–6 mo Typical recovery window for ankle fusion and replacement surgery

Types of Foot & Ankle Arthritis

Knowing which type of arthritis you have is important because each type may respond differently to treatment. Your orthopaedic surgeon will confirm the diagnosis through clinical examination, imaging, and, where appropriate, blood tests.

Osteoarthritis

The most common form of arthritis, arising from gradual wear and tear over time. It most commonly affects the big toe joint, the midfoot, and the ankle. Symptoms typically develop gradually and may worsen over months or years.

Post-traumatic arthritis

Develops after a fracture, severe ankle sprain, or ligament injury. It can emerge years after the original injury has healed, as altered joint mechanics accelerate cartilage breakdown. Studies indicate post-traumatic causes account for approximately 70–80% of ankle arthritis cases, a notably higher proportion than for hip and knee arthritis.

Rheumatoid arthritis

An autoimmune condition where the immune system attacks the synovial lining of joints. It typically affects multiple joints symmetrically and can occur at any age. In the foot, it often begins with the smaller toe joints before involving the ankle.

Gout

Caused by uric acid crystal deposits within joint spaces. The big toe joint is the most commonly affected site, but the ankle and midfoot can also be involved. Episodes of intense Pain often occur suddenly.

Other inflammatory arthropathies

Such as psoriatic arthritis and ankylosing spondylitis- can affect foot and ankle joints and are often managed in collaboration with a rheumatologist alongside orthopaedic care.

Common Causes

Age-related decline in cartilage resilience and the body’s capacity to repair it
Previous foot or ankle injuries, including fractures and ligament tears
Autoimmune conditions such as rheumatoid arthritis
Metabolic disorders, including gout and pseudogout
Inherited structural differences in foot alignment or mechanics
Chronic overloading of joints through occupation or high-impact sport

Risk Factors

Age over 50 — cartilage repair capacity declines progressively with age
Excess body weight — each additional kilogram of body weight places approximately three to five kilograms of extra force on the ankle joint with every step
Family history of arthritis
Occupations requiring prolonged standing on hard surfaces
High-impact or contact sports with repetitive joint stress
Flat feet or high arches — structural deformities can alter how weight is distributed across the foot and ankle
Poorly managed gout or diabetes — both conditions can accelerate joint damage if left inadequately controlled

Signs & Symptoms

Symptoms tend to develop gradually. Many people unknowingly adjust their activities to compensate for joint pain. Recognising these early signs can allow for a wider range of treatment options.

Mild Symptoms

Morning stiffness under 30 minutes, easing with movement
Mild aching after prolonged activity or exercise
Occasional swelling around the joint
Faint grating or clicking sensation in the joint

Moderate Symptoms

Persistent pain during walking and daily tasks
Noticeable swelling that does not fully resolve with rest
Difficulty walking on stairs or uneven ground
Altered walking pattern to protect the joint

Severe Symptoms

Pain at rest and at night, disrupting sleep
Visible joint deformity or misalignment
Inability to bear weight through the foot
Significant reduction in range of motion

When to Seek an Orthopaedic Assessment

Seek a clinical review if you experience joint pain or stiffness that persists for more than two to four weeks without improvement, swelling that returns repeatedly after activity, pain that alters your gait, night pain disrupting sleep, or new or worsening symptoms following a previous ankle fracture. Early assessment may provide a wider range of treatment options and help slow further joint deterioration.

Diagnosis & Testing Methods

An accurate diagnosis is an important first step in understanding your condition and determining an appropriate management plan. At ACME Orthopaedics, the assessment process is tailored to each patient’s symptoms, medical history, and individual needs.

Clinical examination: The consultation begins with a detailed discussion of your symptoms, medical history, lifestyle, and any previous injuries or treatment. Your orthopaedic surgeon will then examine the foot and ankle, assessing the range of motion of the affected joints, identifying areas of tenderness, evaluating the way you walk (gait analysis), and looking for any visible deformity or swelling. The findings from the clinical examination help determine whether further investigations are required.
Imaging: Weight-bearing X-rays are the primary imaging tool used to assess ankle arthritis. They allow your orthopaedic surgeon to evaluate joint space narrowing, bone spurs (osteophytes), and changes in bone alignment while the joint is supporting your body weight, providing a clearer understanding of how the joint functions during standing and walking. For more detailed evaluation of soft tissue structures or pre-surgical planning, an MRI or CT scan may be arranged.
Blood tests: If inflammatory arthritis is suspected, blood tests may be ordered to support the diagnosis. These may include tests for rheumatoid factor, anti-CCP antibodies (anti-cyclic citrullinated peptide), uric acid levels, and inflammatory markers such as ESR (erythrocyte sedimentation rate) and CRP (C-reactive protein).

Our orthopaedic surgeon will explain your diagnosis and guide you through the available treatment options.

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Treatment Options for Foot and Ankle Arthritis

Most patients begin with conservative (non-surgical) management. Surgery may be considered when conservative measures have not provided adequate relief, or when the degree of joint damage means surgery is an appropriate treatment option. Every treatment plan is fully discussed with you before proceeding, and no intervention is recommended without your informed consent.

Non-surgical management

Activity modification

Reducing high-impact activities and replacing them with joint-friendly alternatives, such as swimming or cycling. The aim is to adapt your activities while maintaining mobility where possible.
Physiotherapy

A structured rehabilitation programme that aims to strengthen the muscles surrounding the affected joints, improve balance and gait, and address movement patterns that may place additional stress on arthritic areas.
Bracing and orthotics

Custom insoles may help redistribute pressure across the foot, while ankle-foot orthoses (AFOs) may provide additional support and stability where appropriate.
Injection therapies

Corticosteroid injections may be used to help manage pain and inflammation in the short to medium term. Hyaluronic acid injections and platelet-rich plasma (PRP) injections may also be considered where clinically appropriate. Suitability varies between patients.
Medications

Depending on the underlying cause of arthritis, medications may include non-steroidal anti-inflammatory drugs (NSAIDs) for pain and inflammation, urate-lowering agents for gout, or disease-modifying antirheumatic drugs (DMARDs) for rheumatoid arthritis, in coordination with a rheumatologist where appropriate.

Recovery After Non-surgical Management: Most patients experience gradual improvement over 4 to 12 weeks with conservative treatment, although recovery varies depending on the severity of arthritis, general health, and adherence to the programme. Results differ from person to person and are not guaranteed.

Surgical options

When non-surgical measures no longer provide adequate symptom relief, or when joint damage is significant, surgery may be considered. The choice of procedure depends on the affected joint, the severity of arthritis, and factors such as the patient’s age, activity level, bone quality, and overall health.

Ankle arthroscopic debridement

Patient profile: Early-stage arthritis

Approach: Keyhole / minimally invasive

This keyhole procedure is considered for early-stage arthritis where loose bodies, inflamed synovial tissue, or bone spurs are contributing to symptoms. Small incisions allow the orthopaedic surgeon to access the joint using an arthroscope (a small camera) and specialised instruments to remove the affected tissue without fully opening the joint.

Recovery steps

Days 1–7: Wound care and initial rest. Most patients may be able to bear some weight with a protective boot, depending on their individual recovery.
Weeks 2–4: Physiotherapy may begin to help restore range of motion and reduce swelling.
Weeks 4–6: Gradual return to light activities and low-impact exercise. Full recovery varies by individual.

Ankle arthrodesis (ankle fusion)

Patient profile: Severe arthritis; active patients; bone loss cases

Motion: Eliminated at the fused joint

Ankle fusion permanently joins the ankle bones, eliminating painful movement at the affected joint. It is typically considered for severe ankle arthritis where joint preservation or replacement is not appropriate, often in younger, more physically active patients, those with significant bone loss, or those with severely compromised ankle alignment.

What the procedure involves: The damaged cartilage is removed, and the joint surfaces are prepared to allow the bone to grow together, fusing the two sides into one solid unit. This is typically secured with screws, plates, or other fixation devices, depending on the anatomy and surgical approach.

Recovery timeline after ankle fusion

Weeks 0–6: Non-weight-bearing in a cast or boot. No weight should be placed on the operated ankle. Crutches or a mobility aid are required. Elevation and wound care are priorities.
Weeks 6–12: Once X-ray confirms early fusion, weight-bearing is gradually increased. A walking boot transitions to supportive footwear. Physiotherapy may begin to restore strength and gait.
3–6 months: Most patients are able to return to full daily activities. Adjacent joints continue to adapt over time. Supportive footwear with a rocker-bottom sole may be recommended for long-term use.
Note: Individual recovery timelines vary. This is a general guide only and does not constitute a personalised prognosis.

Total ankle replacement (ankle arthroplasty)

Patient profile: Advanced arthritis; less physically demanding lifestyle; good bone quality

Motion: Preserved

Total ankle replacement removes the damaged joint surfaces and replaces them with prosthetic components that allow the ankle to continue moving. It is generally suited to patients with advanced arthritis who meet appropriate candidacy criteria, typically those with less physically demanding lifestyles, good bone quality, and acceptable ankle alignment.

The principal advantage over fusion is the preservation of ankle movement, which may support a more natural walking pattern and may reduce long-term mechanical stress on adjacent joints. Implant designs have improved considerably in recent years, with modern ankle replacements designed to provide durable function.

Recovery timeline after total ankle replacement

Weeks 0–2: Protected rest in a splint or boot. Wound care and swelling management. Elevation helps reduce swelling and supports early healing.
Weeks 2–6: Physiotherapy may begin earlier than with ankle fusion to help preserve and restore ankle movement. Gentle range-of-motion exercises commence under supervision.
Weeks 6–12: Most patients are able to walk independently in regular footwear. Physiotherapy continues to build strength and refine gait.
3–6 months: Many patients are able to return to their usual daily activities and low-impact pursuits. Individual outcomes vary; your orthopaedic surgeon will advise on realistic expectations for your situation.
Note: Individual recovery timelines vary. This is a general guide only and does not constitute a personalised prognosis.

Ankle Fusion vs Ankle Replacement: Side-by-Side Comparison

Choosing between ankle fusion and ankle replacement is one of the most significant decisions in managing severe ankle arthritis. The table below outlines the key differences to help you understand the considerations involved. The most appropriate treatment option depends on your individual anatomy, activity goals, and overall health. A clinical assessment by an orthopaedic surgeon is required to determine the most suitable treatment approach for your condition.

Factor	Ankle fusion (arthrodesis)	Ankle replacement (arthroplasty)
Joint motion after surgery	Eliminated at the fused joint — the ankle no longer bends	Preserved — the ankle continues to move
Pain relief	Aims to relieve pain by eliminating movement at the affected joint	Aims to relieve pain while preserving ankle movement; outcomes depend on implant function and rehabilitation
Best suited for	Younger or more active patients, those with significant bone loss or severe deformity	Patients with less physically demanding lifestyles, good bone quality, and acceptable alignment
Gait pattern	Adapted gait; adjacent joints compensate; rocker-sole footwear helps	May support a more natural walking pattern
Adjacent joint stress	Higher long-term stress on the subtalar and midfoot joints	Lower stress on adjacent joints due to preserved motion
Implant durability	Permanent; no implant to wear out	Modern implants are designed for long-term use; revision surgery may eventually be needed
Non-weight-bearing period	Approximately 6 weeks	Approximately 2–4 weeks (may vary)
Full recovery estimate	Approximately 3–6 months	Approximately 3–6 months
Return to high-impact sport	May be possible for many patients with technique modification	Generally not recommended; low-impact activities are preferred

Protecting Your Joints: Prevention and Risk Reduction

A person training outdoors with a resistance band around their ankles, wearing athletic shoes.

Some risk factors, such as genetics and past injury, cannot be changed. However, there are meaningful steps you can take to help protect your foot and ankle joints over the long term.

Maintain a healthy body weight to reduce the mechanical load on weight-bearing joints with every step
Choose supportive footwear with adequate arch support and cushioning. Avoid prolonged use of high heels or flat, unsupportive shoes
Engage in regular low-impact exercise, such as swimming, cycling, or walking on softer terrain
Seek prompt medical assessment after ankle injuries. Fractures, ligament tears, and dislocations that are not properly managed may increase the risk of developing post-traumatic arthritis
Manage systemic conditions, such as — gout, diabetes, and rheumatoid arthritis, as appropriate management may help reduce the risk of joint damage.

Seek medical assessment if you experience persistent morning stiffness lasting more than 30 minutes or recurring joint swelling

Foot & Ankle Arthritis

Frequently Asked Questions

Can foot and ankle arthritis be cured?

There is currently no treatment that fully reverses the structural changes caused by arthritis. However, many patients achieve significant improvement in pain and mobility through a combination of conservative measures. For those who require surgery, ankle fusion or ankle replacement can provide substantial and lasting relief. The goal of management is to reduce pain, slow progression, and support quality of life.

What is the difference between ankle fusion and ankle replacement?

Ankle fusion permanently joins the ankle bones, eliminating joint motion to help relieve pain. It is generally suited to younger or more active patients and those with significant bone loss or deformity. Ankle replacement preserves joint motion using prosthetic components and may support a more natural walking pattern in some patients. Your orthopaedic surgeon will advise which is more appropriate for your specific situation.

How long does recovery take after ankle fusion?

Ankle fusion recovery typically follows this pattern: six weeks of non-weight-bearing in a cast or boot, followed by graduated weight-bearing from weeks six to twelve. Many patients are able to return to daily activities within three to six months, although adjacent joints continue to adapt beyond this period. Recovery timelines vary depending on individual factors, including overall health and rehabilitation progress.

How long does recovery take after total ankle replacement?

Recovery from ankle replacement often allows physiotherapy to begin earlier than ankle fusion, typically within the first two weeks, to help preserve and restore joint movement. Walking without aids may become possible between six and twelve weeks. Full recovery generally takes three to six months, though individual outcomes vary.

Is surgery always necessary for ankle arthritis?

No. The majority of patients with foot and ankle arthritis can be managed without surgery through physiotherapy, activity modification, orthotics, and injection therapies. Surgery is generally considered when these measures have not provided adequate relief or when the degree of joint damage makes it the most appropriate option.

Can I continue exercising with ankle arthritis?

Yes, with appropriate modification. Lowimpact activities, such as swimming, cycling, and walking on softer surfaces, are generally well tolerated and help maintain joint mobility and muscle strength. High-impact activities, such as running, may need to be reduced depending on the severity. A physiotherapist can help develop an exercise programme suited to your needs.

Why do younger people develop ankle arthritis?

In younger adults, ankle arthritis most commonly develops as post-traumatic arthritis following a previous fracture, severe sprain, or ligament injury. Studies indicate that post-traumatic causes account for approximately 70–80% of ankle arthritis cases. Autoimmune conditions such as rheumatoid arthritis and metabolic disorders such as gout can also affect younger individuals.

When should I see a doctor for ankle or foot pain?

Seek an orthopaedic assessment if you have joint pain or stiffness persisting beyond two to four weeks without improvement, swelling that returns repeatedly, pain severe enough to alter your walking pattern, night pain disrupting sleep, or a history of ankle fracture with new or changing symptoms. Early assessment gives you more treatment options and helps prevent further joint deterioration.

Will I walk normally after ankle fusion?

Most patients walk comfortably after ankle fusion, though the fused ankle no longer bends. The foot and adjacent joints gradually adapt, and supportive footwear, particularly shoes with a rocker-bottom sole, may help improve walking comfort. Your orthopaedic surgeon will discuss realistic expectations based on your individual condition and lifestyle.

How much does ankle arthritis treatment cost in Singapore?

Treatment costs vary depending on the treatment approach. Conservative options such as physiotherapy and injections are generally less costly than surgery. Surgical treatment costs vary between public and private hospitals and depend on factors such as the procedure performed, hospital type, and ward class. Eligible patients may use MediShield Life, Integrated Shield Plans, and MediSave in accordance with prevailing claim limits. A personalised cost estimate can be provided following your clinical assessment, based on the recommended treatment plan.

Why Choose ACME Orthopaedics

Fellowship-trained surgeon

Subspecialty training in foot and ankle conditions — a depth of expertise beyond general orthopaedics
Conservative-first approach

Surgery is reserved for patients who genuinely need it. All appropriate non-surgical options are fully explored and explained first
Thorough clinical assessment

Diagnosis begins with a detailed examination supported by investigations where appropriate.
Clear communication

Your condition and all management options will be explained in detail, so you can make an informed decision about your care.
Continuity of care

Care is provided from the initial assessment through treatment, rehabilitation, and follow-up.
Registered clinic

The clinic is licensed under Singapore’s healthcare regulations, and care is provided in accordance with applicable professional and regulatory standards.

If foot or ankle pain is affecting your daily life, don’t ignore your symptoms.

Book a consultation for a clinical assessment and to discuss the most appropriate treatment options for your condition.

Book Your Consultation Today

Dr Zackary Chua (蔡克祥医生)

Senior Consultant Orthopaedic Surgeon (Adult & Paeds)

MBBS (AUS)|MMed (Singapore)|MRCS (Glasgow)|FRCSEd (Orth)

A senior consultant orthopaedic surgeon with dual specialisations in Foot & Ankle Surgery and Paediatric Orthopaedics. Backed by his extensive years of training and experience, Dr Chua brings the necessary knowledge and skills to ensure a smooth recovery journey.

Rooted firmly by two fundamental philosophies: “When one’s feet hurt, one hurts all over” and “Children are not little adults”, Dr Chua’s approach to patient care reflects his compassionate care for adults and children.

Singhealth Quality Excellence Award – Silver (2011)
Service From the Heart Award (2021)
Singapore Health Quality Service Award – Gold (2023)
NUS Medicine Dean’s Award for Teaching Excellence (2023)

His active participation in the medical community extends to mentoring, research supervision, and contributions to key professional forums and symposiums, both locally and internationally.