Gout is a common form of inflammatory arthritis. It develops when blood urate levels become high and monosodium urate (MSU) crystals accumulate in joints and surrounding tissues. These crystals cause intense inflammation. Repeated attacks can cause lasting joint damage.
Every day, we deal with such patients at the Njinsky Medical Centre. Our experts go above and beyond to manage joint health. We believe that early awareness of the disease is essential for receiving the right treatment at the right time. This guide has been created for that purpose. Read on to explore the causes and symptoms of the disease, along with the most effective treatment options.
Introducing Gouty Arthritis
Gouty arthritis is an inflammatory condition caused by the deposition of MSU crystals in joints and other tissues. Uric acid is produced when the body breaks down purines. The kidneys excrete roughly two-thirds of the daily urate output, and the gut eliminates most of the remainder. When urate levels remain high, the fluid around the joints can become supersaturated, which can lead to crystal formation. The base of the big toe is the most common site, but the condition can also affect the following:
- Ankles
- Knees
- Feet
- Wrists and elbows
- Fingers
Major Causes of the Disease
- Hyperuricaemia (persistently high blood urate levels)
- Reduced urate excretion
- Excessive urate production
- Genetic factors
- Kidney dysfunction
- High-purine diet
- Alcohol consumption
- Obesity
- Certain medications (such as diuretics and low-dose aspirin)
- Dehydration
Major Risk Factors for Gouty Arthritis
- Male sex, older age, and a family history of gout
- Kidney disease
- Certain medications (such as diuretics and low-dose aspirin)
- Obesity
- Metabolic conditions (such as metabolic syndrome and diabetes)
- High alcohol intake
- Diets rich in purines or sugar-sweetened drinks
- Dehydration
- Reduced urate excretion
- Certain genetic variations
Pathophysiology of the Disease
The pathophysiology of gouty arthritis involves several connected biological processes. The process usually begins with elevated urate levels. When urate reaches a state of supersaturation, monosodium urate crystals can form. These crystals can settle in joints and surrounding tissues.
The immune system then responds to these crystals. Macrophages engulf the crystals, which activates an inflammatory pathway called the NLRP3 inflammasome. This promotes the release of interleukin-1 beta (IL-1β), an inflammatory signal that attracts additional immune cells, particularly neutrophils, to the joint. The result is an acute inflammatory response.
|
Common Symptoms of Gouty Arthritis
- Sudden, severe joint pain, often starting at night
- Sudden swelling
- Red or discoloured skin
- Joint warmth
- Extreme tenderness
- Stiffness
- Difficulty walking
- Reduced joint movement
Diagnostic Procedure
A healthcare professional may use several methods to assess suspected gout. The evaluation may include:
Medical History
A doctor may ask about:
- The location of pain
- Previous attacks
- Family history
- Medications
- Diet
- Kidney health
- Other medical conditions
Physical Examination
The affected joint is examined for swelling, redness, warmth, and tenderness.
Blood Tests
Blood testing can measure serum urate levels.
However, urate levels alone do not confirm gout. Some people with high urate never develop gout, and levels can appear normal during an acute attack. Clinical findings and other investigations may also be needed.
Joint Fluid Analysis
A healthcare professional may take a sample of fluid from the affected joint. The fluid is examined under a polarised-light microscope for needle-shaped monosodium urate crystals. Finding these crystals is the gold standard for confirming a diagnosis of gout.
Radiology
Gouty arthritis radiology can help identify crystal deposition and joint damage. Different imaging techniques provide different types of information.
X-Ray
Conventional radiography is often normal in early gout but can show changes caused by long-standing disease. Possible findings include:
- Punched-out bone erosions
- Overhanging edges around erosions
- Joint damage
- Soft tissue swelling
- Changes associated with tophi
Ultrasound
Ultrasound can detect certain features associated with urate deposits. One recognised finding is the double contour sign. This occurs when urate crystals accumulate on the surface of hyaline cartilage. Ultrasound can also help assess soft tissue changes and some tophi.
Dual-Energy CT
Dual-energy computed tomography can identify urate deposits. It uses X-rays at two different energy levels and gout-specific analysis. The technology can distinguish urate deposits from other tissues. This can be particularly useful when the diagnosis remains uncertain.
|
Treatment
Treatment of gouty arthritis depends on the individual’s condition. The goals are to control acute inflammation, reduce future attacks, and, over the long term, lower urate levels so that crystals dissolve and stop accumulating. Treatment may involve:
- Medicines for acute attacks (such as NSAIDs, colchicine, or corticosteroids)
- Urate-lowering medicines (such as allopurinol or febuxostat)
- Lifestyle changes
- Weight management when appropriate
- Dietary adjustments
- Management of related health conditions
- Regular medical monitoring
Medication should be selected by a qualified healthcare professional. People with recurrent gout may require long-term urate-lowering therapy, usually aiming for a serum urate level below 6 mg/dL (360 µmol/L). Treating pain during an attack alone does not address ongoing crystal deposition.
Lifestyle Measures
Lifestyle changes can support medical treatment. Useful measures may include:
- Stay hydrated
- Maintain a healthy weight
- Limit alcohol intake
- Follow a balanced diet, limiting red meat, organ meats, shellfish, and sugar-sweetened drinks
- Manage other health conditions
Stem Cell Treatment for Arthritis
At Njinsky Medical Centre, we also offer cell-based therapy using stem cells as part of our arthritis treatment approach. Cell-based therapy involves the clinical use of stem cells and their biological properties. These cells are being studied for their potential role in supporting tissue environments and modulating inflammatory processes.
In arthritis care, the treatment is aimed at possible biological activity in damaged and inflamed joint tissue. The therapy is seen as a part of a person’s personalised treatment programme. Before cell-based therapy is considered, a thorough patient assessment is important.
Final Remarks
Gouty arthritis is not simply a short-term episode of joint pain. It is a crystal-deposition disease that, if left uncontrolled, can cause recurrent inflammation and structural joint damage. Understanding the pathophysiology of gouty arthritis highlights why urate control matters and shows how MSU crystals trigger inflammation.
Gouty arthritis radiology can provide valuable information about crystal deposits and joint damage. X-rays, ultrasound, and dual-energy CT can each provide different information. At Njinsky Medical Centre, we encourage patients to seek professional assessment when symptoms appear. Early evaluation can help establish the cause of joint symptoms and support an appropriate treatment plan.
For patients exploring advanced arthritis care, our team can also assess whether cell-based therapy using stem cells may be an appropriate option based on their individual condition. Get in touch today for more details and to book an appointment with an expert.
