A Comparison of the Outcomes of Fiber-Wire versus Stainless Steel Wire in Transosseous Wiring for Intra-Articular Fractures of the Distal Interphalangeal Joint.

Different surgical techniques have been described for the treatment of intra-articular fractures involving extensor tendon insertion of the distal interphalangeal joint (DIPJ), including acute and chronic bony mallet injuries. We have been using transosseous stainless-steel wire (SSW) in select patients. In 2015, we started using a non-absorbable polyester suture (2-0 Fiber-Wire, Arthrex, Naples, FL, USA) instead of SSWs. The aim of this study is to compare the outcomes of SSW and Fiber-Wire (FBW) in transosseous wiring for intra-articular fractures of the DIPJ. This is a retrospective review of patients who underwent fixation of intra-articular fractures, including extensor tendon insertion of the DIPJ using a transosseous wiring technique, in the period from 2013 to 2018. SSW was used in the period from 2013 to 2014, and FBW was used from 2015 to 2018. Outcomes with regard to age, gender, time to union, range of motion at the DIPJ and complications were recorded and compared between the SSW and FBW groups. Nine patients (mean age: 38 years) underwent fixation with SSW and 10 patients (mean age: 31 years) with FBW. The operative time was significantly lower in the FBW group, and all the fractures united. There were no statistically significant differences between both groups with regard to time to union or range of motion at the DIPJ. Similar complication rates were observed in both groups. The use of FBW in transosseous wiring for intra-articular fractures of the DIPJ can reduce operative time and provide functional results similar to that of SSWs. It can be considered as an alternative fixation technique for difficult intra-articular comminuted fractures of the DIPJ, including acute and chronic bony mallet injuries with joint subluxation. Level III (Therapeutic).