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Abstract：
Objective To evaluate whether three-dimensional (3D) printing increases agreement in the classification of tibial pilon fractures. Methods 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. Results The use of the 3D model did not improve agreement for tibial pilon fractures regarding the treatment proposed by the groups. Regarding the classification systems, the agreement only improved concerning the AO/OTA classification when the 3D model was used in the assessment by the foot and ankle specialists. Conclusion Although 3D printing is statistically relevant for surgeons specializing in foot and ankle, its values remain lower than optimal.
摘要：
目的评价三维打印技术在胫骨Pilon骨折分型中的一致性。方法骨科医师和创伤学家回顾X光片，计算机断层扫描与三维重建，和3D打印原型，并根据Rüedi-Allgöwer和ArbeitsgemesinschaftfürOsteosynthesissfragen（AO，内固定研究协会）基金会/骨科创伤协会（AO/OTA）分类系统。接下来,数据评估使用Kappa协议系数。结果3D模型的使用并没有改善胫骨Pilon骨折与各组建议的治疗的一致性。关于分类系统，只有当脚和踝关节专家使用3D模型进行评估时,关于AO/OTA分类的协议才有所改善.结论虽然3D打印在统计学上与足踝专业外科医生相关，它的值仍然低于最优值。
