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Randomized Controlled Trial
. 2014 Sep;19(5):737-43.
doi: 10.1007/s00776-014-0587-2. Epub 2014 Aug 27.

Hypertonic Dextrose Versus Corticosteroid Local Injection for the Treatment of Osteoarthritis in the First Carpometacarpal Joint: A Double-Blind Randomized Clinical Trial

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Randomized Controlled Trial

Hypertonic Dextrose Versus Corticosteroid Local Injection for the Treatment of Osteoarthritis in the First Carpometacarpal Joint: A Double-Blind Randomized Clinical Trial

Azadeh Jahangiri et al. J Orthop Sci. .

Abstract

Purpose: To compare the advantages of prolotherapy in the treatment of first carpometacarpal osteoarthritis (OA) with those of corticosteroid local injection in the short and long term.

Methods: We performed a randomized controlled trial from March 2010 to March 2011 in an outpatient clinic at a university hospital. Sixty participants (60 hands) with OA of the first carpometacarpal joint were assigned equally to two groups. For the corticosteroid group, after 2 monthly saline placebo injections, a single dose of 40 mg methylprednisolone acetate (0.5 ml) mixed with 0.5 ml of 2% lidocaine was injected. For the dextrose (DX) group, 0.5 ml of 20% DX was mixed with 0.5 ml of 2% lidocaine and the injection was repeated monthly for 3 months. Pain intensity, hand function and the strength of lateral pinch grip were measured at the baseline and at 1, 2, and 6 months after the treatment.

Results: Mean age (STD) was 63.6 (9.7) years, and mean (STD) visual analog scale (VAS) was 6 (2). The two groups were comparable at 2 months, but significantly different at 1 month, with better results for corticosteroid, and at 6 months with apparently more favorable outcome for DX [mean difference (95% CI) in VAS = 1.1 (0.2, 2.0), p = 0.02]. After 6 months of treatment, both DX and corticosteroid injection increased functional level, but DX seemed to be more effective [mean difference (95% CI) in total function score = 1.0 (0.2, 1.8), p = 0.01].

Discussion: For the long term, DX seems to be more advantageous, while the two treatments were comparable in the short term. Because of the satisfactory pain relief and restoring of function, we would prefer DX prolotherapy for the treatment of patients with OA.

Level of evidence: Therapeutic studies--investigating the results of treatment; level I.

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