Podagra: Epidemiology, Definition, and Diagnostic Guidance

Epidemiology and Definition

• Approximately half of all initial gout attacks involve the first metatarsophalangeal (MTP) joint of the great toe, and this presentation is termed podagra. 1, 2, 3

• Podagra is defined as an acute monoarthritis of the first MTP joint. 1

Clinical Presentation

• During an acute podagra attack, pain typically peaks within 6–12 hours and is accompanied by marked swelling, tenderness, and overlying erythema. 1, 2, 4

Diagnostic Accuracy

• For patients with recurrent podagra and hyperuricemia, a clinical diagnosis alone is considered reasonably accurate, with a strength of recommendation of 95 %. 1, 4

• Classic podagra yields a likelihood ratio of 30.64, with sensitivity of 96 % and specificity of 97 % for gout diagnosis. 1, 5

Diagnostic Recommendations and Pitfalls

• Gout should not be diagnosed solely on first MTP joint involvement; crystal confirmation is recommended whenever feasible, especially for first attacks or when septic arthritis cannot be excluded. 2, 4

• Joint aspiration with synovial fluid analysis remains the gold‑standard diagnostic test, demonstrating sensitivity of 63–78 % and specificity of 93–100 % when performed by experienced operators. 1, 4