Use of Three-dimensional Printing for Tibial Pilon Fracture Diagnosis and Treatment.

 To evaluate whether three-dimensional (3D) printing increases agreement in the classification of tibial pilon fractures.  Orthopedists and traumatologists reviewed radiographs, computed tomography scans with 3D reconstruction, and prototyping 3D printing, and classified the fractures based on the Rüedi-Allgöwer and Arbeitsgemeinschaft für Osteosynthesefragen (AO, Association for the Study of Internal Fixation) Foundation/Orthopedic Trauma Association (AO/OTA) classification systems. Next, data evaluation used Kappa agreement coefficients.