Radiological criteria for acceptable reduction of extra-articular distal radial fractures are not predictive for patient-reported functional outcome

The purpose of this study was to assess the association between arm-specific disability measured with the QuickDASH questionaire and radiological criteria in patients with extra-articular distal radial fractures. A consecutive series of 385 patients were initially treated non-operatively for an extra-articular distal radial fracture and 257 (69 %) patients were included in the study. In 203 of these patients (78%) the quality of radiographic reduction was judged to be adequate by radiological parameters, which included dorsal tilt, radial inclination, and radial shortening. In 54 patients (22%) the quality of radiographic alignment was judged to be inadequate. We observed no effect of radiographic parameters on the functional outcome. Female sex and longer duration of follow-up (>35 months) were the only independent prognostic factors significantly associated with a worse QuickDASH score.