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Related Experiment Videos

Radiosynovectomy in pigmented villonodular synovitis.

S Kat1, R Kutz, T Elbracht

  • 1Clinic of Nuclear Medicine, Friedrich-Alexander University Erlangen-Nürnberg, Germany. sonja.kat@nuklear.med.uni-erlangen.de

Nuklearmedizin. Nuclear Medicine
|December 29, 2000
PubMed
Summary

Combined surgical and radiosynovectomy effectively treats pigmented villonodular synovitis (PVS) symptoms and inflammation. This approach significantly reduces clinical scores and improves bone scintigraphy, offering a promising therapeutic option for PVS patients.

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Area of Science:

  • Orthopedics
  • Nuclear Medicine
  • Radiology

Background:

  • Pigmented villonodular synovitis (PVS) is a rare benign synovial proliferation with high relapse rates after surgical synovectomy.
  • Current treatment relies on surgical or arthroscopic synovectomy, but recurrence remains a significant challenge.

Purpose of the Study:

  • To evaluate the efficacy of combined radiosynovectomy (RS) and surgical synovectomy for treating pigmented villonodular synovitis.
  • To assess the impact of this combined therapy on clinical symptoms and bone scintigraphy findings.

Main Methods:

  • Eleven patients with PVS underwent thirteen radiosynovectomies using Y-90 citrate or Re-186 sulfide, following surgical synovectomy.
  • Clinical response was evaluated using a composite score for hydrops, rubor, motility, and pain.

Related Experiment Videos

  • Bone scintigraphy, including blood pool (BUR) and delayed (DUR) uptake of Tc-99m-diphosphonate, was quantified.

    • Main Results:

    • The overall clinical score significantly decreased from 5.45 to 1.18 one year post-treatment (p < 0.005).
    • Blood pool uptake (BUR) showed a significant reduction from 0.51 to 0.08 (p < 0.005).
    • Delayed image uptake (DUR) did not demonstrate significant changes (p = 0.3).

    Conclusions:

    • Combined surgical synovectomy and radiosynovectomy is highly effective for managing clinical symptoms of PVS.
    • This combined approach improves bone scintigraphic signs of inflammation.
    • Radiosynovectomy does not appear to influence late diphosphonate uptake in PVS patients.