Gout

Other

Overview

Gout is an inflammatory arthropathy caused by monosodium urate crystal deposition in joints and surrounding tissues, most commonly affecting the first metatarsophalangeal joint. It presents acutely with severe inflammatory pain, swelling, and erythema, often triggered by dietary purines, alcohol consumption, or dehydration. Osteopathic management focuses on pain relief, improving local circulation, and addressing contributing musculoskeletal dysfunction.

Pathophysiology

Hyperuricemia leads to monosodium urate crystal formation in joints and soft tissues when serum uric acid exceeds saturation point. These crystals trigger acute inflammatory response through NLRP3 inflammasome activation, attracting neutrophils and producing intense pain. Chronic tophaceous gout develops with recurrent attacks, leading to joint damage and erosions.

Typical Presentation

Site

First metatarsophalangeal joint (70% of cases), but also midfoot, ankle, knee, wrist, and other joints; can be polyarticular

Quality

Severe, throbbing, burning pain; described as unbearable; accompanied by exquisite tenderness

Intensity

Severe (8-10/10); acute onset, typically reaching peak within 24-48 hours

Aggravating

Weight-bearing on affected joint, walking, tight footwear, movement, palpation of affected area; dietary purines (red meat, organ meats, shellfish), alcohol (especially beer), dehydration, trauma, surgery, sudden dietary changes, NSAIDs cessation

Relieving

Rest and elevation of affected limb, ice application, NSAIDs, colchicine, corticosteroids, immobilization in early phase; once acute phase resolves, gentle movement and warmth

Associated

Severe swelling and erythema, warmth over joint, inability to bear weight, low-grade fever (in acute attacks), tophi (chronic deposits), joint stiffness post-attack, recurrent attacks (often worse with each episode)

Orthopaedic Tests

Test descriptions are written with AI assistance from standard clinical texts. Where a test lists Sources, its description has been checked against them; those sources are independent and do not endorse OsteoKit. Accuracy figures and grades (A–D) appear only when checked against the published study; tests without one are marked “No accuracy study”.

Further reading: full test procedures are described in standard clinical examination texts, e.g. Magee & Manske, Orthopedic Physical Assessment (7th ed.), and Cook & Hegedus, Orthopedic Physical Examination Tests: An Evidence-Based Approach (2nd ed.).

Grade B
A+ABCDGood clinical value: meaningfully changes the diagnosis in one direction (LR 5–10 or 0.1–0.2)
best for ruling OUT (screening).

ACR/EULAR 2015 Gout Criteria (Clinical Score)

Procedure

Entry: at least one episode of swelling, pain or tenderness in a peripheral joint or bursa. Then score: which joints have been involved (the first MTP joint scores highest); features of the attacks (redness, cannot bear touch or pressure, great difficulty walking or using the joint); time course (pain peaking quickly and settling within a couple of weeks, with full recovery between attacks); tophi; and serum uric acid. Imaging results are added if available.

Positive Finding

A total at or above the published threshold classifies the episode as gout.

Sensitivity / Specificity

85% (clinical items only; 330 patients)/78%

Reference: Neogi T, Jansen TL, Dalbeth N, Fransen J, Schumacher HR, Berendsen D, et al. 2015 Gout classification criteria: an American College of Rheumatology/European League Against Rheumatism collaborative initiative. Ann Rheum Dis. 2015;74(10):1789-98.

Interpretation

Built for research classification, but the clinical items help organise the history. Aspirating the joint to find urate crystals is how gout is confirmed. A hot, swollen joint with fever or feeling unwell must be treated as septic arthritis until proven otherwise: same-day medical assessment. From the independent validation group of the 2015 ACR/EULAR criteria (Neogi 2015): 330 patients with a swollen joint or nodule that could have been gout, with urate crystals on joint aspiration as the reference. The figures are for the clinical items only, without crystal or imaging results, as they would be used outside hospital. With crystal and imaging results the criteria reached 92% / 89%, but finding crystals counts as gout automatically, so those figures are partly circular. The criteria were built for research classification; joint aspiration remains the way to confirm gout.

Sources

No accuracy study

First MTP Joint Inspection and Palpation

Procedure

Look at the big toe joint for redness, swelling and shiny skin, and compare with the other foot. Gently palpate the joint line.

Positive Finding

A red, hot, swollen, exquisitely tender first MTP joint.

Interpretation

The classic site of an acute gout attack, but a hot big toe joint can also be septic arthritis, cellulitis, pseudogout or an inflamed bunion. Do not treat the joint manually during an attack. A hot, swollen joint with fever or feeling unwell must be treated as septic arthritis until proven otherwise: same-day medical assessment. The figure previously stored was attributed to the 2015 ACR/EULAR criteria paper, which does not report it. Involvement of the first MTP joint is one item in a primary-care rule for acute gout (Janssens 2010: 328 patients with one swollen joint, crystals as the reference), alongside male sex, a previous attack, onset within a day, redness, high blood pressure or heart disease, and raised uric acid. No figure is shown for the joint finding on its own.

Sources

No accuracy study

Synovial Fluid Aspiration & Polarized Light Microscopy

Procedure

A doctor draws fluid from the joint with a needle; the fluid is examined under a polarised light microscope and sent for Gram stain and culture.

Positive Finding

Needle-shaped urate crystals that are negatively birefringent.

Interpretation

Confirms gout. The same sample checks for infection, which can occur alongside crystals, and for the different crystals of pseudogout (CPPD).

Sources

No accuracy study

Ultrasound Imaging (Double Contour Sign & Tophus Detection)

Procedure

Ultrasound of the affected joints, usually the first MTP joints and knees, by a sonographer or rheumatologist.

Positive Finding

A bright line of urate over the cartilage (double contour sign) or tophi.

Interpretation

Shows urate deposits and supports gout when aspiration is not possible. Results depend on the operator.

Sources

No accuracy study

Serum Uric Acid Level

Procedure

Blood test ordered by a doctor, ideally a few weeks after an attack has settled.

Positive Finding

Uric acid above the laboratory's reference range.

Reference: Kingsley & Hochfeld, 1997, Seminars in Arthritis and Rheumatism; Stamp et al., 2020, Journal of Rheumatology

Interpretation

Supports gout but does not confirm it: many people with high uric acid never get gout, and the level can be normal during an attack. Used to guide and monitor urate-lowering treatment.

Sources

No accuracy study

C-Reactive Protein (CRP) & Erythrocyte Sedimentation Rate (ESR)

Procedure

Blood tests ordered by a doctor.

Positive Finding

Raised CRP or ESR.

Reference: See current literature; general inflammatory marker interpretation

Interpretation

Often raised during an acute attack, but equally raised in septic arthritis, so they cannot tell the two apart. A hot, swollen joint with fever or feeling unwell must be treated as septic arthritis until proven otherwise: same-day medical assessment.

Sources

⚠ Red Flags

  • •Fever >38.5°C with joint pain (possible septic arthritis)
  • •Acute monoarticular arthritis in immunocompromised patients requiring joint aspiration to rule out infection
  • •Rapid progression with multiple joint involvement and systemic symptoms
  • •Signs of cellulitis or lymphangitis around affected joint
  • •Acute kidney injury or significantly elevated serum creatinine
  • •Acute coronary syndrome presenting with acute gout attack
  • •History of cardiac arrhythmia (colchicine contraindication)

⚡ Yellow Flags

  • •Medication non-adherence with urate-lowering therapy
  • •Alcohol use disorder contributing to hyperuricemia
  • •Poor dietary compliance and understanding of trigger foods
  • •Depression or anxiety secondary to recurrent debilitating attacks
  • •Social isolation due to mobility limitations during acute phases
  • •Secondary gain from chronic pain behavior
  • •Catastrophizing about future attacks affecting quality of life

Osteopathic Techniques

Refer first

A gout flare needs prompt medical treatment, ideally within the first 24 hours: anti-inflammatories, colchicine or glucocorticoids, with rest and ice. Repeated flares or tophi need long-term urate-lowering therapy. Refer before using manual techniques on an inflamed joint.

Rehabilitation Exercises

Ankle Circles (Gentle)

Range of MotionBeginner

Toe Extension and Flexion (Supine)

Range of MotionBeginner

Plantar Fascia Stretch

StretchingBeginner

Calf Stretch (Wall or Step)

StretchingBeginner

Intrinsic Foot Muscles Activation (Short Foot Exercise)

StrengtheningIntermediate

Towel Scrunches with Foot

StrengtheningIntermediate

Resistance Band Ankle Movements (All Directions)

StrengtheningIntermediate

Single Leg Standing (Supported Progress to Unsupported)

BalanceIntermediate

Tandem Walking or Balance Beam Walking

BalanceAdvanced

Gait Re-education (Normal Walking Pattern Training)

PosturalIntermediate

Stationary Cycling (Post-acute Phase)

CardiovascularIntermediate

Swimming or Water Walking (Non-weight-bearing Cardio)

CardiovascularIntermediate

Referral Criteria

  • •Suspected septic arthritis (fever, severe systemic symptoms, inability to rule out infection clinically)
  • •First presentation of acute arthritis in undiagnosed patient (rheumatology referral for confirmation and management planning)
  • •Chronic tophaceous gout with significant joint damage or erosions (rheumatology for advanced management)
  • •Serum uric acid persistently >6.8 mg/dL despite lifestyle modification (rheumatology for urate-lowering therapy)
  • •Renal insufficiency or elevated creatinine (nephrology referral)
  • •Recurrent acute attacks despite pharmacological prophylaxis (rheumatology)
  • •Associated systemic symptoms or polyarticular involvement with systemic features (rheumatology)
  • •Gout secondary to malignancy or chemotherapy (oncology and rheumatology)
  • •Failure to respond to standard management after 2-3 weeks (rheumatology)
  • •Dietary counseling needs and metabolic assessment (dietitian specializing in gout management)