Evaluation of arthroscopy and macroscopic scoring.

Area of Science:

• Rheumatology
• Minimally Invasive Surgery

Background:

• Arthroscopy is a key minimally invasive technique for synovial biopsy in rheumatology.
• Continuous evaluation of arthroscopy's safety and efficacy is crucial.
• Intra-articular variation necessitates reliable sampling methods for synovial markers.

Purpose of the Study:

• To assess the complication rate and diagnostic yield of rheumatologic arthroscopy.
• To develop and validate a macroscopic scoring system for synovitis during arthroscopy.

Main Methods:

• Retrospective analysis of 408 arthroscopies (1998-2005) for complications and biopsy yield.
• Development and evaluation of a macroscopic scoring system (Macro-score) for synovitis based on hypertrophy, vascularity, and global assessment.
• Intra- and inter-rater reliability testing of the Macro-score using video printer photographs.

Main Results:

• Low complication rate: 2 major (hemarthrosis) and 1 minor (wound infection) among 408 procedures.
• High biopsy yield for knee joints (94%) and adequate overall yield (83%).
• The developed Macro-score demonstrated low intra- and inter-rater variability, indicating reliability and ease of use.

Conclusions:

• Rheumatologic arthroscopy is a safe procedure with a low complication profile.
• Arthroscopy provides reliable synovial tissue for knee joint studies.
• The novel Macro-score is a reliable and user-friendly tool for macroscopic synovitis assessment, potentially aiding international standard development.