Abstract
The presence of clinically palpable finger joint nodules (Heberden's and Bouchard's nodes) was documented in 123 consecutive cases with diffuse idiopathic skeletal hyperostosis (DISH) of the thoracic spine and 191 matched DISH negative controls. The prevalence of palpable finger joint nodules was almost twice as frequent in cases with spinal DISH compared to controls (46% versus 31%, chi 2 = 7.67, P less than 0.01; multivariate adjusted odds ratio OR = 1.84; 95% CI: 1.14-2.98). This increase was most marked at the proximal interphalangeal joint, in males and in patients up to the age of 65 years. In addition and independent of other variables such as hyperostotic features, age and sex, the prevalence of palpable finger joint nodules was about twice as high in probands with a history of physically heavy work compared to those without (43% versus 26%, chi = 9.18, P less than 0.005; multivariate adjusted odds ratio OR = 2.10; 95% CI: 1.26-3.52). From these results we conclude that DISH should be considered as an independent risk factor in the development of finger joint nodules.
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