We define the long-term outcomes and rates of further operative intervention following displaced Bennett's fractures treated with Kirschner (K)-wire fixation.

We prospectively identified patients who were treated for displaced Bennett's fractures over a 13 year period between 1996 and 2009. Electronic records for these patients were examined and patients were invited to complete a Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire in addition to a patient satisfaction questionnaire.

We identified 143 patients with displaced Bennett's fractures treated with K-wire fixation and followed them up at a mean of 13 years. The mean patient age at the time of injury was 33.2 years. At the time of follow up, 11 patients had died and 1 had developed dementia and was unable to respond. 9 patients had no contact details. This left 122 patients available for recruitment. Of these, 60 did not respond leaving a study group of 62 patients. Patients reported excellent functional outcomes and high levels of satisfaction at follow up. Mean satisfaction was 89% and the mean DASH score was 3.2. The infection rate was 3%. None of the 122 patients had undergone salvage procedures and none of the responders had changed occupation or sporting activities.

Long-term patient reported outcomes following displaced Bennett's are excellent. Fusion surgery or trapeziectomy was not undertaken for any patient in this series nor did this injury result in sporting or occupational changes. The rate of infection is low and similar to the literature for other surgical procedures with percutaneous K-wires.