Crossed K-Wires Versus Intramedullary Headless Screw Fixation of Unstable Metacarpal Neck Fractures: A Biomechanical Study.

Background Intramedullary headless screw (IMHS) has shown promise as an alternative to other fixation devices for metacarpal neck fractures. The purpose of this study was to assess the biomechanical performance of IMHS versus the commonly-used crossed K-wire technique. We hypothesized that IMHS fixation provides superior stability to K-wires.