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[The joint in algodystrophy. Joint fluid, synovium, cartilage].

J C Renier, J Arlet, C Bregeon

    Revue Du Rhumatisme Et Des Maladies Osteo-Articulaires
    |April 1, 1983
    PubMed
    Summary

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    Algodystrophy (also known as Complex Regional Pain Syndrome) involves joint fluid with low cell counts and high protein levels. Synovial tissue shows increased vascularity, edema, and fibrosis, but lacks significant inflammation.

    Area of Science:

    • Rheumatology
    • Pathology
    • Cell Biology

    Context:

    • Algodystrophy, a complex regional pain syndrome, affects synovial tissue and joint fluid.
    • Understanding the pathological changes in algodystrophy is crucial for diagnosis and treatment.
    • Previous studies have indicated alterations in joint fluid and synovial tissue, but a comprehensive histological analysis is needed.

    Purpose:

    • To characterize the cellular and protein composition of joint fluid in algodystrophy.
    • To perform a detailed histological examination of synovial tissue in algodystrophy patients.
    • To identify key histological features indicative of algodystrophy in synovial biopsies.

    Summary:

    • Joint fluid analysis revealed low cell counts (mean 275/mm3, 15% polymorphs) and elevated protein levels (≥40 g/l).

    Related Experiment Videos

  • Histological examination of synovial biopsies (n=33) showed a characteristic pattern: absence of synovial lining hyperplasia and inflammatory infiltrate.
  • Key positive findings included marked hypervascularity, chorionic edema (especially early in disease), arteriolar wall hyperplasia, and progressive chorionic fibrosis.

    • Impact:

    • Provides detailed histopathological criteria for diagnosing algodystrophy.
    • Highlights the role of vascular and fibrotic changes in the disease pathogenesis.
    • Suggests potential targets for therapeutic interventions aimed at reducing edema and fibrosis.