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Knee arthroscopy after yttrium or osmic acid injection
C Guaydier-Souquieres1, J Beguin, D Ollivier
1Department of Rheumatology, C.H.U., Caen, France.
Summary
Knee arthroscopy after intraarticular yttrium or osmic acid injections revealed causes of treatment failure in rheumatoid arthritis patients. This procedure helps understand synovitis relapse and guides further therapeutic decisions.
Area of Science:
- Rheumatology
- Orthopedic Surgery
- Medical Imaging
Background:
- Rheumatoid arthritis often involves knee synovitis.
- Intraarticular injections of yttrium or osmic acid are used for synoviorthesis.
- Treatment failure or synovitis relapse necessitates further investigation.
Purpose of the Study:
- To evaluate the macroscopic and histologic findings of knee arthroscopy.
- To understand the causes of synoviorthesis failure after yttrium or osmic acid injections.
- To assess the diagnostic and therapeutic utility of arthroscopy in such cases.
Main Methods:
- Performed 35 knee arthroscopies on patients with rheumatoid arthritis.
- Patients had previously received intraarticular yttrium or osmic acid injections.
- Procedures were conducted following injection failure or synovitis relapse.
Main Results:
- Arthroscopy identified causes of synoviorthesis failure.
- Identified issues included insufficient product action, poor diffusion, fibri-nonecrotic deposits, and cartilaginous lesions.
- Macroscopic and histologic findings provided insights into treatment outcomes.
Conclusions:
- Knee arthroscopy is valuable for diagnosing the reasons behind synoviorthesis failure.
- Findings can guide subsequent treatment strategies for rheumatoid arthritis patients.
- Arthroscopy offers both diagnostic and therapeutic benefits in managing refractory synovitis.