The purpose of this study was to describe the technique and usefulness of 
ultrasound-guided intrasheath injection of triamcinolone in the treatment of de 
Quervain's disease (dQD). Our study was retrospective in design. Seventy-one 
wrists of 62 patients who were treated with an ultrasound-guided triamcinolone 
injection for dQD were included. A literature search was performed to compare 
our results. In the literature we found supportive evidence that accurate 
injection of triamcinolone in the first dorsal compartment of the wrist is 
important for a good outcome. In this retrospective study we found that 
treatment with ultrasound-guided injections of triamcinolone is both safe and 
effective. After two injections, 91% of the patients had good long-term results, 
which is a higher cure rate than found in most other studies. Furthermore, we 
found that Finkelstein's test can give a false positive result. Therefore, 
ultrasound should not only be considered to improve the treatment outcome, but 
can also be useful as a diagnostic tool in the management of de Quervain's 
disease.