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Related Experiment Videos

Synovial fluid cell analysis

M Dougados1

  • 1Department of Rheumatology, Hôpital Cochin, Paris, France.

Bailliere'S Clinical Rheumatology
|August 1, 1996
PubMed
Summary
This summary is machine-generated.

Synovial fluid analysis via arthrocentesis is crucial for diagnosing joint disorders. Simple evaluations, including cell counts and microcrystal searches, aid in differentiating conditions like septic arthritis and crystal-induced arthritis.

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Area of Science:

  • Rheumatology
  • Clinical Pathology
  • Orthopedics

Background:

  • Arthrocentesis is an essential clinical examination tool.
  • Synovial fluid analysis provides objective evidence of articular disorders.
  • Simple synovial fluid evaluations aid in diagnosing and differentiating rheumatic diseases.

Purpose of the Study:

  • To highlight the diagnostic utility of synovial fluid analysis.
  • To emphasize the importance of bacterial and synovial fluid analysis, including microcrystal detection.
  • To differentiate various joint pathologies based on synovial fluid characteristics.

Main Methods:

  • Arthrocentesis for synovial fluid aspiration.
  • Microscopic examination for microcrystals and cell counts.

Related Experiment Videos

  • Bacterial analysis of synovial fluid.
  • Distinguishing haemarthrosis from traumatic tap by careful observation.

    • Main Results:

    • Paucicellular synovial fluid (< 1000 cells/mm3) suggests mechanical disorders.
    • Purulent synovial fluid indicates septic arthritis or crystal-induced arthritis.
    • Inflammatory synovial fluid (> 1000-2000 cells/mm3) typically shows polymorphonuclear cell predominance, but other cell types can indicate specific diagnoses like eosinophilic or lymphocytic arthritis.

    Conclusions:

    • Synovial fluid analysis is a cornerstone for diagnosing joint disorders.
    • Differential cell counts are vital for distinguishing between various inflammatory arthropathies.
    • Age-specific etiologies for haemarthrosis include osteoarthritis in the elderly and hemostasis disorders/tumors in younger individuals.