Antonio Frizziero1, Nicola Maffulli2, Stefano Masiero1, Luigi Frizziero3. 1. Department of Physical and Rehabilitation Medicine, University of Padova, Italy. 2. Queen Mary University of London Centre for Sports and Exercise Medicine Mile End Hospital Mann Ward, London, UK; Head of Department of Physical and Rehabilitation Medicine, University of Salerno, Azienda Ospedaliera San Giovanni di Dio e Ruggi d'Aragona, Salerno, Italy. 3. Department of Rheumatology, Villa Toniolo Hospital, Bologna, Italy.
Abstract
BACKGROUND: this retrospective open label study evaluates the efficacy and tolerability of intra-articular injections of Hyaluronic Acid (HA) (MW 500-730 KDa - Hyalgan®) for the treatment of pain and disability of trapeziometacarpal joint osteoarthritis (TMCJ OA). METHODS: fifty eight patients, 50 females (86%) and 8 male (14%), aged between 40-75 years, suffering from TMCJ OA according to Kellgren-Laurence grades 2-3 on standard plain radiography, were included. Patients with known inflammatory arthritis, previous thumb trauma and intra-articular (i.a.) injections with corticosteroids were excluded. Primary endpoints were: pain (VAS), NSAID intake, radial and palmar ab-/adduction, pinch strength. All patients received an i.a. injection of 0.8 mL of HA (MW 500-730 KDa) once weekly for three weeks. Control examinations were carried out at 1, 3, and 6 months. RESULTS: intra-articular HA injections have significantly reduced spontaneous and provoked pain and improved hand mobility. At 1,3, and 6 months from baseline, the spontaneous and provoked pain revealed a statistically significant improvement (p<0,0001). NSAID's intake evidenced a statistically significant reduction against baseline (p<0.017). The adverse events (21%) were related to local symptoms such as pain during or following HA administration. CONCLUSIONS: this study shows that i.a. HA injections for TMCJ OA can induce a significant improvement of function associated to stiffness decrease and pain relief.
BACKGROUND: this retrospective open label study evaluates the efficacy and tolerability of intra-articular injections of Hyaluronic Acid (HA) (MW 500-730 KDa - Hyalgan®) for the treatment of pain and disability of trapeziometacarpal joint osteoarthritis (TMCJ OA). METHODS: fifty eight patients, 50 females (86%) and 8 male (14%), aged between 40-75 years, suffering from TMCJ OA according to Kellgren-Laurence grades 2-3 on standard plain radiography, were included. Patients with known inflammatory arthritis, previous thumb trauma and intra-articular (i.a.) injections with corticosteroids were excluded. Primary endpoints were: pain (VAS), NSAID intake, radial and palmar ab-/adduction, pinch strength. All patients received an i.a. injection of 0.8 mL of HA (MW 500-730 KDa) once weekly for three weeks. Control examinations were carried out at 1, 3, and 6 months. RESULTS:intra-articularHA injections have significantly reduced spontaneous and provoked pain and improved hand mobility. At 1,3, and 6 months from baseline, the spontaneous and provoked pain revealed a statistically significant improvement (p<0,0001). NSAID's intake evidenced a statistically significant reduction against baseline (p<0.017). The adverse events (21%) were related to local symptoms such as pain during or following HA administration. CONCLUSIONS: this study shows that i.a. HA injections for TMCJ OA can induce a significant improvement of function associated to stiffness decrease and pain relief.
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