Treatment of mallet fracture using a percutaneous fixation technique with an 18-gauge needle.

The purpose of this paper is to introduce a simple and intuitive treatment method using an 18-gauge needle for mallet fractures that involve more than one-third of the articular surface. We performed a retrospective review of 17 patients who underwent closed reduction using an 18-gauge needle with transfixation of Kirschner wire between March 2007 and October 2013. According to the Wehbe and Schneider classification, 15 cases were type IB, 1 was type IIB, and 1 was type IIC. The mean size of bony fragments at the time of injury was 53 percent of the articular surface of the distal phalanx. According to Crawford's criteria, 6 of 17 patients had an excellent result, 9 had a good result and 2 had fair results. Our method of percutaneous reduction using an 18-gauge needle with transfixation of Kirschner wire is minimally invasive and is useful for the fixation of mallet fractures.