Gout in the metatarsophalangeal joint of the big toe (Podagra)

Anatomy and function of the metatarsophalangeal joint of the big toe

The big toe joint (1st MTP joint) connects the first metatarsal bone with the basal phalanx of the big toe. It carries a large part of the load when the foot rolls and controls the powerful push-off when walking and running.

• Articular surfaces with hyaline cartilage for low-friction movement
• Joint capsule and ligaments for stability
• Sesamoid bones under the first metatarsal head for power transmission
• Tendons of the big toe flexors and extensors for push-off and guidance

The high load and the comparatively cool temperature in the forefoot promote crystal failure when uric acid is elevated - one reason why gout typically affects this area.

What is Podagra? Causes and triggers

Gout is an inflammatory joint disease caused by the deposition of uric acid crystals (monosodium urate) in and around joints. The basis is usually a long-standing increase in uric acid in the blood (hyperuricemia).

• Increased uric acid production: diet rich in purines (e.g. offal, red meat, certain fish/seafood), excess fructose
• Decreased uric acid excretion: genetic factors, impaired kidney function, certain medications (e.g. diuretics)
• Lifestyle and accompanying factors: Obesity/metabolic syndrome, alcohol (especially beer and spirits), dehydration
• Other triggers: acute stress, fasting, extreme physical stress, rapid weight loss

A gout attack is often triggered by a sudden change in uric acid concentration. Crystals can precipitate or be mobilized and provoke acute inflammation.

Typical symptoms: Acute attack and chronic course

• Sudden, severe pain in the metatarsophalangeal joint of the big toe - often at night
• Redness, warmth, swelling and pronounced tenderness
• Pain from movement and exertion, protective posture; Touching the blanket was barely bearable
• Occasionally general symptoms such as mild fever and fatigue

Without appropriate treatment, attacks may recur and last longer. In the chronic course, there is a risk of cartilage and bone damage near the joints, soft tissue changes and so-called tophi (crystal-containing nodules).

Diagnostics: This is how we proceed

Diagnosis is based on history, clinical examination, laboratory and – if possible – detection of uric acid crystals. Important: We carefully rule out dangerous differential diagnoses, especially bacterial joint inflammation.

Important: Uric acid may temporarily be normal during an acute attack. A single laboratory value therefore does not reliably rule out gout.

Differential diagnoses: What needs to be differentiated?

• Bacterial joint inflammation (septic arthritis) – emergency
• Pseudogout (calcium pyrophosphate deposits)
• Osteoarthritis of the big toe joint (Hallux rigidus)
• Rheumatic diseases (e.g. psoriatic arthritis)
• Injuries/irritations (e.g. bruises, sesamoid irritation)

Acute therapy: Relieve pain quickly and safely

The aim of acute therapy is to quickly calm the inflammation and regain resilience - without unnecessary risks. The selection of medication depends on comorbidities, tolerability and individual factors.

• Protection, elevation, cooling of the joint
• Relief with suitable footwear, forefoot relief shoes or crutches for a short time
• Non-steroidal anti-inflammatory drugs (NSAIDs) in adjusted doses unless there are contraindications
• Colchicine in low, individually tailored doses; Consideration of interactions and compatibility
• Short-term corticosteroids in the form of a tablet or – after an infection has been ruled out – as a targeted injection into the joint
• For severe, therapy-resistant cases: interleukin-inhibiting substances in specialized situations

An already established reduction in uric acid usually continues during an attack. We clarify individually and guideline-based whether a new uric acid reduction should be started during an attack.

Long-term strategy: avoid relapses, protect the joint

In the long term, the focus is on reducing uric acid and controlling triggers. Target serum uric acid levels are usually below 6 mg/dL; for tophi, a lower target value may make sense. We discuss the target values ​​and the approach individually.

• Diet: eat less purines (less offal, red meat, anchovies/seafood), avoid drinks containing fructose, moderate coffee consumption and low-fat dairy products can be beneficial
• Alcohol abstinence or significant reduction, especially beer and spirits
• Drink enough water (if medically safe), lose weight if you are overweight
• Optimize comorbidities: blood pressure, blood lipids, diabetes, kidney function
• Medicinal uric acid lowering: xanthine oxidase inhibitors (e.g. allopurinol or alternatives) first; Uricosurics in selected cases
• Initial prophylaxis against flare-ups when starting to lower uric acid, e.g. B. with low-dose colchicine or NSAIDs for a limited time
• Regular checks of uric acid, kidney and liver values; Dose adjustment as needed

Conservative orthopedics: offloading, footwear, rehabilitation

In addition to anti-inflammatory drugs, orthopedic measures help to bridge pain peaks and maintain function.

• Forefoot-relieving footwear in the acute phase, wide toe box, soft upper materials
• Stiff or rolling-supporting soles (rocker sole), possibly carbon insoles to reduce joint movement
• Individual insoles for pressure redistribution and stabilization
• Physiotherapy after the acute phase has subsided: mobilization, gentle strengthening, gait training
• Ergonomic everyday tips: Avoid going up stairs in the acute phase, plan short distances

When do invasive measures make sense?

Our focus is clearly on conservative procedures. Invasive steps are only used after careful consideration.

• Joint puncture to relieve pressure and confirm the diagnosis
• Targeted corticosteroid injection after exclusion of infection
• Surgical procedure in exceptional cases: removal of disturbing tophi, correction in the case of massive joint destruction or painful final stages (e.g. joint stiffening) - only if there is a clear indication

Special situations and safety

Many patients with Podagra have comorbidities. Therapy is adapted to minimize risks.

• Kidney disease: careful selection and dosage of NSAIDs and urate-lowering agents
• Cardiovascular diseases: benefit-risk assessment of painkillers
• Diabetes: inflammatory attacks can stress the metabolism - close monitoring makes sense
• Interactions: some medications affect uric acid or are influenced by uric acid-lowering agents - we check this on a case-by-case basis

Course, prognosis and prevention

With a consistent, individual strategy, the frequency and intensity of gout attacks can be significantly reduced and subsequent damage to the joint can be prevented. There is no guarantee - but the combination of lifestyle measures, medication according to guidelines and orthopedic support offers the best chances.

• Early treatment of the attack shortens the duration of symptoms
• Consistent uric acid control reduces the risk of relapse
• Regular follow-up checks enable timely adjustments
• Warning signs (e.g. fever, severe general symptoms) should be checked by a doctor - if you suspect an infection, do not hesitate

Everyday life and self-help tips

• Acute: Cool (short intervals), elevate, avoid pressure and shock
• Comfortable, wide shoes; Use rolling aid if available
• 2-3 small meals, no crash diets; Drink plenty of water when medically permitted
• Avoid alcohol and sugar-sweetened drinks and reduce foods rich in purines
• Easy to implement exercise units outside of the acute phase (walking, cycling), weight management
• Adhere to medication schedule and controls; point out possible interactions with new medications

Your orthopedic contact point in Hamburg

You can find us at Dorotheenstraße 48, 22301 Hamburg. We plan diagnosis and therapy transparently, conservatively and adapted to your everyday life. If you have acute symptoms, we strive to arrange appointments as soon as possible.