Rheumatoid arthritis of the elbow

Anatomy and significance of the elbow joint

The elbow consists of three partial joints (humeroulnar, humeroradial and radioulnar joints) in a common joint capsule. Inner surfaces are lined with a synovial membrane (synovium) that nourishes and lubricates. When gripping, lifting and rotating the forearm, low-friction interaction is necessary.

Rheumatoid arthritis targets this synovium: inflammatory cells thicken the mucous membrane (synovitis), produce inflammatory fluid and can damage adjacent cartilage, bones, ligaments and tendons.

• Synovitis: inflammatory thickening of the joint lining
• Effusion: increased fluid in the joint
• Erosions: bony marginal defects caused by chronic inflammation
• Accompanying structures: Bursa olecrani, ulnar nerve in the ulnar sulcus

What does rheumatoid arthritis of the elbow mean?

RA is a systemic autoimmune disease that typically affects multiple joints symmetrically. In the elbow it presents as persistent synovitis with pain, swelling and stiffness. If left untreated, it can lead to instability, cartilage wear and misalignment. Early, targeted therapy is crucial in order to preserve joint structure and function for as long as possible.

• Often bilateral involvement
• Morning stiffness lasting 30-60 minutes
• Relapsing course with phases of higher activity and rest

Typical symptoms

• Painful, overheated and swollen elbow
• Morning stiffness, start-up pain, night pain
• Stretching and rotational movements are painfully restricted
• Loss of strength when lifting, carrying and turning
• Tingling/numbness of the ring and little fingers when the ulnar nerve is stimulated
• Inflammation of the bursa above the elbow (olecranon bursitis)
• Rarely palpable rheumatoid nodules

Causes and risk factors

The exact cause is not fully understood. Genetic factors, misdirected immune reactions and environmental factors all play together. Pain in the elbow occurs due to inflammatory synovitis and the mechanical stress of everyday movements.

• Genetics (e.g. HLA-DRB1 variants)
• Smoking increases risk and activity
• Women are more commonly affected
• Seropositivity (rheumatoid factor, anti-CCP antibodies)
• Previous joint inflammation or injuries as triggers

Diagnostics in practice

We combine history, physical examination and targeted imaging. If active RA is suspected, we work closely with rheumatology to quickly initiate or adapt systemic therapy.

Differential diagnostics must include: Elbow osteoarthritis, crystal arthropathies (gout/CPPD), loose joint bodies, isolated bursitis, instability after injury and rarely infections should be considered.

Differential diagnoses at the elbow

• Elbow osteoarthritis: stress-dependent pain without pronounced morning stiffness
• Gout/CPPD: acute, highly inflammatory attack, crystal evidence
• Septic arthritis: severe redness, fever, general symptoms – emergency
• Free joint bodies: pinching phenomena, snapping
• Joint instability after trauma: buckling, unsteadiness
• Tendinopathies (e.g. epicondylitis) as a companion or confusion

Conservative therapy: step-by-step plan

Conservative measures are in the foreground. The aim is to reduce inflammation, relieve pain and maintain mobility. Close coordination with rheumatology on disease-modifying therapy (DMARDs) is crucial.

• Education and everyday adaptation: avoid stressful end positions, use aids
• Physiotherapy: pain-adapted mobilization, joint preservation and stretching program, stabilization of the surrounding muscles
• Occupational therapy: joint protection techniques, workplace and aid advice
• Immobilization/orthosis for a limited period of time during flare-ups; light stretching splint at night
• Cold in acute inflammation, heat in remission as tolerated
• NSAIDs if necessary and after weighing the risks and benefits (note stomach protection)
• Intra-articular corticosteroid injection (ultrasound-targeted) for persistent synovitis as a bridging measure
• Systemic DMARD therapy (e.g. methotrexate, leflunomide, sulfasalazine, hydroxychloroquine) – care by rheumatology
• If response is inadequate: biologics or JAK inhibitors by rheumatology

There is limited data on regenerative procedures (e.g. PRP) for RA of the elbow. It is used - if at all - only after individual information, as a supplement and not as a replacement for guideline-based RA therapy.

Interventional and surgical options

If relevant synovitis, pain or functional limitations persist despite optimized conservative and systemic treatment, targeted interventions may be useful. The selection depends on inflammatory activity, joint status, age, stress profile and comorbidities.

• Arthroscopic or open synovectomy: removal of inflammatory mucosa to reduce the inflammatory burden; useful for predominantly soft tissue activity without advanced destruction
• Radiosynoviorthesis (RSO): nuclear medical obliteration of the synovium in selected cases; requires strict indications and radiation protection measures
• Decompression/transposition of the ulnar nerve: when narrowed with numbness/weakness
• In the case of structural damage: bone smoothing procedures, removal of loose joint bodies, if necessary ligament/tendon reconstruction
• Advanced destruction: total elbow arthroplasty (TEA) or rarely arthrodesis - with clear restrictions on loads; The aim is to reduce pain and gain function

Surgical measures are intended to relieve symptoms and improve function, but do not cure RA. Benefits and risks are weighed individually.

Associated problems and complications

• Chronic synovitis with capsule shrinkage and restricted movement
• Erosions, cartilage damage and secondary osteoarthritis
• Ulnar neuropathy (tingling/numbness, loss of strength)
• Inflammation of the bursa (bursa olecrani), possibly risk of infection
• Tendon involvement up to partial tears (e.g. triceps tendon)
• Risk of osteoporosis due to inflammation and corticosteroids

Everyday life, training and self-management

• Regular, pain-adapted movement exercises to maintain stretching and rotational movement
• Joint protection: lever techniques, aids (e.g. turning aids), avoiding long end positions
• Adjust the workplace ergonomically; Forearm rest relieves pressure
• Moderate endurance and strength training (e.g. cycling, Nordic walking, water therapy)
• Stop smoking – has an inflammatory effect
• Weight management, balanced diet with anti-inflammatory components
• Relapse management: Cool, reduce stress, consult a doctor early

Your appointment in Hamburg-Winterhude: Procedure

Location: Dorotheenstraße 48, 22301 Hamburg. Appointments can be coordinated with your rheumatological team.

When should I urgently see a doctor?

• Sudden severe redness, heat, fever or clear general symptoms
• Pain at rest with startles at night despite rest
• Rapid increase in swelling or a “locked” joint
• Newly occurring sensory disturbances/weakness in the hand and fingers
• Persistent pain/instability after injury

Course and prognosis

Thanks to early, effective systemic therapies, the prognosis is now significantly better than it used to be. However, the elbow can develop flare-ups despite good control. Consistent, interdisciplinary care, a lifestyle that is gentle on the joints and graduated measures help to maintain function and quality of life in the long term. Interventions are used in a complementary and targeted manner.

Common Misconceptions

• “If I have rheumatism, I’m not allowed to move my elbow.” – On the contrary: guided, painless movement maintains function.
• “Injections are generally harmful.” – When dosed correctly and used in a targeted manner, they can bridge flare-ups.
• “RA and osteoarthritis are the same thing.” – RA is an autoimmune inflammation; Osteoarthritis is a degenerative wear and tear.
• “Surgery cures RA.” – Operations treat consequences on the joint, not the systemic disease.

Related topics

Depending on the course, subsequent problems such as secondary osteoarthritis, loose joint bodies or instability can develop. Non-specific joint inflammation must also be differentiated. For more information, see our detail pages below.