The Choice of Osteosynthesis for Distal Radius Fractures: A Matter of Taste, Fracture Instability, or Patient-Related Factors? A Retrospective Study of Functional Outcome in 346 Distal Radius Fractures Operated With Percutaneous Wires or Volar Plate Fixation

Background: Surgery with volar locking plate (VLP) for distal radius fractures (DRFs) has become dominant over percutaneous Kirschner wire (K-wire) (PKW) fixation. Not many studies have proved advantages of the VLP and the increasing dominance of the VLP is thus not derived from evidence of superiority but influenced by other factors.Methods: By retrospectively classifying 346 DRFs treated with either PKW or VLP fixation, according to the Buttazzoni classification system, we aimed to investigate the determining factors for choice of surgical method, and by review of the patients' medical records, the functional outcome, duration, and frequentness of the rehabilitation period were correlated to Buttazzoni type and surgical method.Results: The odds ratio of having volar plate fixation was negatively correlated to age and positively correlated to a higher Buttazzoni type. We found no clinically significant differences in the functional outcome for different Buttazzoni type of fractures within the VLP and PKW groups, respectively, nor between the 2 methods of surgery for any Buttazzoni type of fracture.Conclusion: Younger patients and fractures with higher grade of instability were more likely to be treated with VLP than PKW; however, neither fracture instability nor surgical method had any impact on functional outcome.