Which modality is the best choice in distal radius fractures treated with two different Kirschner wire fixation and immobilization techniques?

Abstract

Background: The aim of the study was to investigate whether the number and position of Kirschner (K)-wires, and the manner and duration of immobilization influence radiologic and functional outcomes of distal radius fractures treated with percutaneous K-wire fixation.

Methods: Ninety-two patients were included into the study with a mean follow-up period of 19.84±5.22 months (range, 13-34 months). In Group I, forty-five patients were treated with 3 K-wires and supported with a volar semi-circular cast for the first 3 weeks followed by a removable splint for a further 3 weeks. In Group II, forty-seven patients were treated with 2 K-wires and supported with a below-elbow circular cast for 6 weeks postoperatively.

Results: No significant difference in grip strength and DASH scores was found between the two groups. In clinical examination, significantly better functional results were determined in patients supported with a removable volar splint. At 6 weeks postoperatively, volar tilt, radial inclination, and radial length were significantly better in Group I compared to Group II (all p values).

Conclusion: Tripod technique with 3 K-wires is a safe and reliable procedure to achieve stability and good radiological results. The use of a removable splint also improves the functional outcomes in the treatment of both intra- and extra-articular distal radius fractures.