Abstract | BACKGROUND: This study tested the null hypothesis that type of injection ( corticosteroid vs. placebo) is not a predictor of arm-specific disability as measured with the Disabilities of Arm, Shoulder and Hand questionnaire 1 to 3 months after injection of dexamethasone or placebo for treatment of trapeziometacarpal (TMC) arthrosis or de Quervain syndrome. Secondly, we tested if type of injection was a predictor of pain intensity. METHODS: Thirty-six English-speaking adults with TMC arthrosis or de Quervain syndrome were randomized for a dexamethasone or a placebo injection. At time of the injection, patients completed a demographic data sheet and validated questionnaires assessing arm-specific disability, pain intensity, depressive symptoms, pain catastrophizing, and patient's health-related beliefs. At an average of 1.4 ± 0.42 months (range, 0.79-2.5 months) after the injection, patients completed questionnaires regarding arm-specific disability, pain, and treatment satisfaction. Grip and pinch strength measurements were measured at both time points. Bivariable and multivariable analyses assessed predictors of arm-specific disability and pain intensity at follow-up. RESULTS: Type of injection was not a predictor of arm-specific disability or pain intensity 1 to 3 months after injection. The best model both for arm-specific disability and pain intensity at follow-up included pain catastrophizing and explained 18 % and 33 % of the variability, respectively. CONCLUSIONS: Catastrophic thinking was a better predictor of both of arm-specific disability and pain intensity than diagnosis or type of injection ( steroid vs. placebo) 1to 3 months after an injection.
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Authors | Dennis J S Makarawung, Stéphanie J E Becker, Stijn Bekkers, David Ring |
Journal | Hand (New York, N.Y.)
(Hand (N Y))
Vol. 8
Issue 4
Pg. 375-81
(Dec 2013)
ISSN: 1558-9447 [Print] United States |
PMID | 24426952
(Publication Type: Journal Article)
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