Published in:
Open Access
01-12-2009 | Research article
Comparative, double-blind, controlled study of intra-articular hyaluronic acid (Hyalubrix®) injections versus local anesthetic in osteoarthritis of the hip
Authors:
Alberto Migliore, Umberto Massafra, Emanuele Bizzi, Francesca Vacca, Severino Martin-Martin, Mauro Granata, Andrea Alimonti, Sandro Tormenta
Published in:
Arthritis Research & Therapy
|
Issue 6/2009
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Abstract
Introduction
Comparison of intra-articular bacterial-derived hyaluronic acid (Hyalubrix®) (HA) with local analgesia (mepivacaine) for osteoarthritis (OA) of the hip.
Methods
A pilot prospective, double-blind, 6-month randomized trial of 42 patients with hip OA. HA or mepivacaine was administered twice (once a month) under ultrasound guidance. Efficacy measurements included the Lequesne's algofunctional index, a visual analog scale for pain, concomitant use of analgesia, patient and physician global measurement, and safety.
Results
Patients in the HA group exhibited a significantly reduced Lequesne's algofunctional index 3 and 6 months after treatment (P < 0.001) and significantly reduced visual analog scale pain scores 3 and 6 months after treatment (P < 0.05) compared with the local anesthetic group. All primary and secondary measures were significantly improved versus baseline, but other than the above were not different from each other at 3 or 6 months. Adverse effects were minimal.
Conclusions
This comparative study suggests a beneficial effect and safety of intra-articular HA in the management of hip OA.
Trial registration number
ISRCTN39397064.