[Significance of primary diagnosis of carpal instability].

In general the dislocation of the carpal bones with subsequent carpal instability is rare. The diagnosis depends on a correct interpretation of the X-ray. In a follow-up study 25 patients with closed carpal instabilities were examined. In 14 the carpal instability had been established in the primary diagnosis and treated adequately. The functional results were good. 11 patients, in whom the dislocation of the carpal bones had been overlooked, did not receive primary therapy and had unsatisfactory function of the hand.