Reactive, infectious, or postinfectious arthritis?

Area of Science:

• Rheumatology
• Immunology
• Infectious Diseases

Background:

• Reactive arthritis, originally termed sterile arthritis, presents ongoing complexities in rheumatology.
• Lack of uniform terminology, classification, and diagnostic criteria complicates understanding and management.
• Challenges persist for non-specialists in navigating this multifaceted condition.

Purpose of the Study:

• To provide a comprehensive overview of reactive arthritis, synthesizing current knowledge.
• To address and clarify existing controversies regarding terminology, classification, and diagnosis.
• To update information on causative pathogens, including infectious and vaccine-related triggers.

Main Methods:

• Literature review of recent findings in reactive arthritis.
• Analysis of current diagnostic and classification criteria.
• Compilation of data on identified causative agents.

Main Results:

• The understanding of reactive arthritis has evolved beyond the sterile arthritis concept.
• Significant variations in terminology and diagnostic approaches persist.
• An expanded list of causative pathogens, including viruses and parasites, has been identified.

Conclusions:

• Further standardization of terminology and criteria is needed for reactive arthritis.
• A broader range of etiological factors, including infectious agents, should be considered.
• Improved clarity is essential for effective management by rheumatologists and general practitioners.