Abstract
To investigate whether ultrasonographic joint assessment can predict the clinical response to intra-articular injection therapy of the knee. Patients with persistent gonarthritis intra-articularly received in a randomized double-blinded crossover fashion radiation synovectomy or a glucocorticoid injection, both followed by clinical bed rest. Prior to treatment and 3 months afterwards, grey-scale ultrasonography (US) of the knee was performed, measuring synovial thickness and extent of effusion. The final clinical effect of these two treatments was assessed at 3 months and finally at 6 months using a composite index. Ninety-seven patients, mainly suffering from undifferentiated arthritis (40%) or rheumatoid arthritis (31%), received 165 injections (including crossovers). Clinical effect at 6 months was not related to the baseline ultrasonographic extent of effusion or synovial thickness, nor with ultrasonographic decrease of effusion after the first 3 months. Nevertheless, it was associated with ultrasonographic decrease of synovial thickness within the first 3 months. Simple baseline US measurements fail to predict the final clinical effect of intra-articular treatment of the knee at 6 months, in contrast to early US changes of synovial thickness 3 months after therapy.
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Abbreviations
- CCI:
-
composite change index
- D:
-
diameter
- DMARD:
-
disease-modifying anti-rheumatic drug
- GC:
-
glucocorticoid
- MBq:
-
megabecquerel
- mCi:
-
millicurie
- MCSA:
-
mean cross-sectional area
- MTX:
-
Methotrexate
- NSAID:
-
non-steroidal anti-inflammatory drug
- RA:
-
rheumatoid arthritis
- RSO:
-
radiation synovectomy
- SF:
-
synovial fluid
- SPP:
-
suprapatellar pouch
- SPSS:
-
Statistical Package for Social Sciences
- TH:
-
triamcinolone hexacetonide
- UA:
-
undifferentiated arthritis
- US:
-
ultrasonography
- VAS:
-
visual analogue scale
- 90Y:
-
90Yttrium
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Acknowledgments
The authors wish to thank the Department of Clinical Neurophysiology of the University Medical Center Utrecht (Prof. AC van Huffelen) and of the St. Antonius Hospital at Nieuwegein (Dr. RGA Akkerstaf) for making their ultrasonography machines available for this study. We also thank the following rheumatologists for referring patients for inclusion in this study: AAM Blaauw, A Hartkamp, C van Booma-Frankfort, JC Ehrlich, AA van Everdingen, HCM Haanen, DM Hofman, PM Houtman, TL Jansen, KJ Korff, AA Kruize, HK Ronday, Y Schenk, E-J Ter Borg, MJ van der Veen and CM Verhoef. Furthermore, this study is financially supported through the grant from The Netherlands Organization for Scientific Research (NWO) 920-03-053.
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Jahangier, Z.N., Jacobs, J.W.G., Swen, W.A.A. et al. Can simple ultrasonography predict the clinical effect of intra-articular injection therapy of the knee joint?. Clin Rheumatol 30, 749–755 (2011). https://doi.org/10.1007/s10067-010-1614-0
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DOI: https://doi.org/10.1007/s10067-010-1614-0