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Randomized Controlled Trial
Is hyaluronate sodium effective in the management of knee osteoarthritis? A placebo-controlled double-blind study.
- E Kul-Panza and N Berker.
- Department of Physical and Rehabilitation Medicine, Camlica Erden Hospital, Istanbul, Turkey. evrenkul@yahoo.com
- Minerva Med. 2010 Apr 1;101(2):63-72.
AimThe aim of this study was to investigate the effect of intra-articular hyaluronic acid (HA) injection on pain and function in knee osteoarthritis (OA).MethodsFourty-eight patients with knee OA were included in this study. The patients were randomized into two groups: one group received HA injections (average molecular weight [MW] 1.5 million Da), and the other group received placebo containing 0.9% saline. Three injections of HA or placebo were given at weeks 1, 2 and 3. The evaluation instruments were: Visual Analog Scale (VAS); Likert Scale; Lequesne
ResultsSignificant improvement for almost all parameters was noted in both groups (P <0.05). There was no statistically significant difference between change in outcome after HA or placebo treatment (P >0.05), except for WOMAC pain subscore on walking at final assessment (week 14) which showed greater improvement in the HA-treated group (35.2% versus 9.1%; P=0.01).ConclusionHA treatment was effective in the management of knee OA and improved knee pain and functional outcome, but there was no statistically significant difference in functional and symptom improvement with respect to saline (placebo) injection. Notes
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