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Impact of ulnar styloid fractures in nonoperatively treated distal radius fractures

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Abstract

Purpose

The effect of an ulnar styloid fracture (USF) on the stability of nonoperatively treated distal radius fractures (DRF) is unknown. The aim of this study was to evaluate the influence of USFs on the dislocation of DRFs treated by closed reduction.

Methods

Standardized radiographs of 100 nonoperatively treated DRFs were evaluated. DRFs with a USF were compared to DRFs without a USF with respect to dorsal tilt, radial inclination, and ulnar variance.

Results

We evaluated the radiographs of 100 DRFs in 99 consecutive patients, of whom 84 were women. An accompanying USF was present in 58 wrists, of which 49 were displaced. On the trauma radiograph, the USF group showed significantly more overall dislocation. After closed reduction, fracture position improved, and no significant differences in dislocation were observed between groups. After a mean of 42 days, radial inclination significantly decreased if a USF was present. When USF displacement was taken into account, significantly more ulnar variance occurred in the displaced USF group on the trauma and follow-up radiograph compared to the nondisplaced USF group and no-USF group.

Conclusions

The results of this study show that presence of a dislocated USF in patients with a DRF is associated with a worse position directly after trauma, and with recurrence of radial shortening after adequate reduction. These results warrant early radiologic follow-up in patients with reduced combined DRFs and USFs in order to evaluate the redislocation of the distal radius. Early detection of redislocation in these combined fractures may induce early surgical intervention.

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Correspondence to M. M. E. Wijffels.

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van Valburg, M.K., Wijffels, M.M.E., Krijnen, P. et al. Impact of ulnar styloid fractures in nonoperatively treated distal radius fractures. Eur J Trauma Emerg Surg 39, 151–157 (2013). https://doi.org/10.1007/s00068-013-0256-8

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  • DOI: https://doi.org/10.1007/s00068-013-0256-8

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