Rheumatoid arthritis
in Singapore

Living with joint pain, stiffness, and swelling can affect daily activities and overall quality of life. Persistent joint discomfort, especially if it worsens in the mornings or affects multiple joints symmetrically, may indicate rheumatoid arthritis. This chronic autoimmune condition affects many people in Singapore, but with proper medical care and symptoms can be managed to help maintain mobility and prevent long-term joint damage. Understanding the condition is the first step toward effective management.

Dr Zackary Chua

Senior Consultant Orthopaedic Surgeon (Adult & Paeds)

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

Causes & Risks Symptoms When to see a Doctor Diagnosis Treatment Complications Prevention FAQ Conclusion

What is Rheumatoid Arthritis?

Rheumatoid arthritis (RA) is a chronic autoimmune disease in which the immune system attacks the lining of the joints (synovium), causing inflammation, pain, and potential joint damage. Unlike osteoarthritis, which results from wear and tear, RA is an inflammatory condition that can develop at any age, though it commonly develops between ages 30 and 60. Beyond joints, RA can affect other organs including the heart, lungs, and eyes, making ongoing medical management important.

Causes

The exact cause of rheumatoid arthritis is not fully understood. Research suggests it results from a combination of genetic susceptibility and environmental triggers. In affected individuals, the immune system produces antibodies that attack healthy joint tissue, causing chronic inflammation. This autoimmune response thickens the synovium and can eventually damage cartilage and bone within the joint. Certain infections or environmental factors may act as triggers in people who are genetically predisposed.

Risk Factors

Genetics: Having a family member with RA increases risk, particularly if specific HLA gene variants are present
Gender: Women are 2-3 times more likely to develop RA than men
Age: While RA can occur at any age, risk increases between 40-60 years
Smoking: Current and former smokers have higher risk, especially those with genetic predisposition
Obesity: Excess body weight can increaseRA risk and worsen symptoms
Environmental exposures: Long-term exposure to silica dust or asbestos may increase risk.
Previous infections: Certain viral or bacterial infections may trigger RA in susceptible individuals
Hormonal factors: Changes in hormones may influence the development and severity of RA

Signs & Symptoms

Early Stage Symptoms

Morning stiffness lasting more than 30 minutes
Mild joint pain and tenderness, especially in hands and feet
Subtle swelling in small joints
General fatigue and low-grade fever
Reduced grip strength
Minor difficulty with fine motor tasks

Progressive Symptoms

Persistent joint swelling and warmth
Pain affecting multiple joints symmetrically
Visible joint deformity beginning to develop
Nodules under the skin near affected joints
Significant morning stiffness lasting hours
Difficulty performing daily activities
Weight loss and persistent fatigue

Advanced Stage Symptoms

Severe joint deformity and permanent damage
Loss of joint function and mobility
Chronic pain even at rest
Secondary complications affecting organs
Significant disability impacting independence
Muscle weakness and wasting around affected joints

Rheumatoid arthritis symptoms typically develop gradually over weeks to months, though some people experience sudden onset. The hallmark feature is symmetric joint involvement, meaning both sides of the body are affected similarly.

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When to See a Doctor

You should seek medical attention if you experience persistent joint pain, swelling, or stiffness lasting more than six weeks. Consultation is recommended for symmetric joint involvement, morning stiffness exceeding 30 minutes, or joint symptoms accompanied by fatigue and fever.

Red flag symptoms requiring urgent evaluation include sudden severe joint pain with fever, rapid onset of multiple joint swelling, or existing RA symptoms suddenly worsening. Red flag symptoms that warrant prompt medical evaluation include sudden severe joint pain with fever, rapid onset of multiple joint swelling, or worsening of existing RA symptoms. During your consultation, our orthopaedic surgeon may perform a comprehensive assessment, including physical examination, blood tests, and imaging studies, to support diagnosis and guide management options.

Diagnosis & Testing Methods

Diagnosing rheumatoid arthritis involves a combination of clinical evaluation, laboratory tests, and imaging studies. Your rheumatologist will begin with a detailed medical history and physical examination, checking for joint swelling, tenderness, and range of motion. Blood tests play a crucial role, including rheumatoid factor (RF) and anti-cyclic citrullinated peptide (anti-CCP) antibodies, which are specific markers for RA. Inflammatory markers like erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) help assess disease activity.

X-rays establish baseline joint condition and monitor progression over time, while ultrasound can detect early inflammatory changes not visible on X-rays. MRI scans provide detailed images of soft tissue inflammation and early bone erosion. These tests, combined with symptom duration and pattern, allow for accurate diagnosis according to established classification criteria.

Treatment Options Overview

Disease-Modifying Antirheumatic Drugs (DMARDs)

DMARDs form the cornerstone of rheumatoid arthritis treatment by slowing disease progression and preventing joint damage. Methotrexate remains the first-line DMARD, typically started immediately upon diagnosis. Other conventional DMARDs include sulfasalazine, hydroxychloroquine, and leflunomide. These medications work by suppressing the overactive immune response, requiring regular monitoring through blood tests. Most patients notice improvement within 6-12 weeks of starting treatment.

Biologic DMARDs

When conventional DMARDs provide insufficient control, biologic medications offer targeted immune suppression. These include TNF inhibitors (adalimumab, etanercept), interleukin inhibitors (tocilizumab), and B-cell depleting agents (rituximab). Biologics are administered via injection or infusion and often combined with methotrexate for effectiveness. JAK inhibitors represent the newest class, offering oral alternatives to injectable biologics.

Anti-Inflammatory Medications

NSAIDs (non-steroidal anti-inflammatory drugs) and corticosteroids provide symptomatic relief while waiting for DMARDs to take effect. Low-dose prednisone may be used as a bridge therapy during flares or treatment transitions. These medications effectively reduce pain and inflammation but don’t prevent joint damage, making them adjuncts rather than primary treatments.

Physical and Occupational Therapy

Structured exercise programmes maintain joint flexibility and muscle strength while protecting inflamed joints. Occupational therapists teach joint protection techniques and recommend assistive devices to maintain independence. Regular physiotherapy helps preserve function and can reduce pain through targeted exercises and manual therapy techniques.

Injection Therapies

Intra-articular corticosteroid injections provide rapid relief for severely inflamed joints, particularly useful for flares affecting one or two joints. These injections can improve function while systemic medications take effect. Hyaluronic acid injections may benefit some patients with secondary osteoarthritis in affected joints.

Complementary Approaches

Acupuncture, tai chi, and yoga may help manage pain and improve flexibility when used alongside medical treatment. Dietary modifications, including anti-inflammatory foods and omega-3 supplements, may provide modest benefits. Heat and cold therapy offer simple, effective relief for daily symptom management.

Surgical Interventions

When joint damage becomes severe despite medical management, surgical options include synovectomy (removing inflamed joint lining), tendon repair, joint fusion, or total joint replacement. Modern joint replacement techniques can help restore function and reduce pain in end-stage arthritis, depending on individual circumstances and response to medical therapy. Surgery timing depends on individual circumstances and response to medical therapy.

Every patient’s condition is unique.

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Complications if Left Untreated

Untreated rheumatoid arthritis leads to progressive joint destruction, resulting in permanent deformity and disability. Chronic inflammation affects multiple organ systems, significantly increasing cardiovascular disease risk. RA patients face twice the risk of heart attack and stroke compared to the general population.

Beyond joint complications, untreated RA can cause rheumatoid nodules, lung inflammation (interstitial lung disease), dry eyes and mouth (Sjögren’s syndrome), and increased infection risk. Chronic inflammation may lead to anaemia, osteoporosis, and increased fracture risk. The systemic nature of RA means that controlling inflammation benefits not just joints but overall health and longevity. Managing inflammation early may help reduce these risks and support overall health.

Prevention

While rheumatoid arthritis cannot be completely prevented due to genetic factors, several strategies can reduce risk and prevent disease progression. Smoking cessation is one of the most important modifiable risk factors, particularly for those with family history of RA. Maintaining healthy body weight can help reduce joint stress and inflammatory burden. Regular moderate exercise can strengthen the muscles supporting joints and may have protective effects.

For those diagnosed with RA, secondary prevention focuses on preventing flares and joint damage. This includes strict medication adherence, regular monitoring, prompt treatment of flares, and maintaining overall health through proper nutrition and exercise. Stress management techniques may help reduce flare frequency. Dental hygiene is important as gum disease may worsen RA. Annual vaccinations can prevent infections that could trigger flares or complicate immunosuppressive treatments.

Rheumatoid Arthritis

Frequently Asked Questions

How is rheumatoid arthritis different from osteoarthritis?

Rheumatoid arthritis is an autoimmune disease causing inflammation in multiple joints symmetrically, often with systemic symptoms like fatigue and fever. It can affect people at any age and causes inflammatory joint damage. Osteoarthritis results from mechanical wear and tear, typically affecting weight-bearing joints asymmetrically in older individuals. RA requires immune-suppressing medications while osteoarthritis is managed with pain relief and joint protection. Blood tests can detect RA-specific antibodies, while osteoarthritis diagnosis relies on imaging and clinical findings.

Can rheumatoid arthritis go into remission?

Yes, with modern treatment approaches, many patients achieve clinical remission where disease activity is minimal or absent. Early treatment within the first three months offers good remission chances. Remission is defined as having no tender or swollen joints, normal inflammatory markers, and no progression of joint damage. While some patients maintain drug-free remission, most require ongoing medication at lower doses to prevent flares. Regular monitoring helps detect early signs of disease reactivation.

What lifestyle changes help manage rheumatoid arthritis?

Regular low-impact exercise like swimming, cycling, and yoga maintains joint flexibility and muscle strength without excessive stress. An anti-inflammatory diet rich in omega-3 fatty acids, fruits, and vegetables may help reduce symptoms. Adequate sleep and stress management are crucial as both affect immune function. Maintaining healthy weight reduces joint stress and improves medication effectiveness. Smoking cessation is essential as smoking worsens RA and reduces treatment response. Joint protection techniques during daily activities prevent unnecessary stress on inflamed joints.

How often will I need to see my rheumatologist?

Visit frequency depends on disease activity and treatment response. Initially, appointments may be monthly while establishing effective treatment. Once stable, visits typically occur every 3-4 months for monitoring. Blood tests are usually done every 2-3 months to monitor medication effects and disease activity. During flares or medication changes, more frequent visits ensure proper management. Annual X-rays track joint health. Between visits, patients should report new symptoms or medication side effects promptly.

Are the medications for rheumatoid arthritis safe for long-term use?

Modern RA medications have been extensively studied for long-term safety. While all medications carry some risks, the benefits of preventing joint damage and disability far outweigh potential side effects for most patients. Regular monitoring through blood tests helps detect any issues early. Your rheumatologist will discuss specific risks and benefits based on your medical history and chosen medications. Many patients safely take RA medications for decades with good quality of life. The key is finding the right medication balance with proper monitoring.

Can I still work and exercise with rheumatoid arthritis?

Most people with well-controlled RA maintain active work and exercise routines. Early treatment prevents the disability that previously characterised RA. Workplace accommodations like ergonomic equipment or flexible schedules may help during flares. Regular exercise is beneficial, improving joint function and overall health. The key is choosing appropriate activities and modifying them based on disease activity. Your rheumatologist and physiotherapist can provide specific guidance on safe exercise programmes that strengthen joints without causing damage.

Conclusion

Rheumatoid arthritis can be effectively managed with early diagnosis and appropriate treatment. Timely medical care, consistent monitoring, and adherence to recommended therapies can help preserve joint function and maintain quality of life. An orthopaedic surgeon can guide you through suitable treatment options, helping to manage symptoms and reduce the risk of joint damage.

Take the First Step Towards Better Health

Rheumatoid arthritis can affect daily life, but professional guidance can help you understand your options and manage symptoms effectively.

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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.