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目的：探讨跟骨骨折畸形愈合的数字化虚拟重建的技术方法及其在矫形手术设计中应用的可行性。方法利用跟骨骨折畸形愈合病例患侧、健侧足踝部CT扫描图像及其数据收集，应用Mimics14.0软件进行三维重建，在重建出三维数字化模型及相关测量基础上，进行虚拟截骨及内固定等手术设计，并将虚拟截骨后的相关解剖学参数与健侧进行对比及拟合，据此进行手术治疗。结果重建出跟骨骨折畸形愈合的三维数字化可视模型，制备出相应的3D实物模型，可进行跟骨骨折畸形愈合相关解剖学参数的测量，可在个人计算机上初步实现截骨、内固定等矫形手术设计的可视化与可操作化。结论数字化虚拟重建技术能够为跟骨骨折畸形愈合的术前判断、临床诊治方式的选择等提供更为精准的解剖学及影像学依据，并可望用于跟骨畸形愈合截骨治疗手术的设计。“,”Objective To explore the virtual reconstruction technique of calcaneal malunion digitization and the feasibility of the method applied in the design of orthopedic surgery. Methods CT scan images of ipsilateral, contralateral foot and ankle of calcaneal malunion cases were imported to Mimics14.0 for reconstruction of the 3D model. on the basis of the reconstruction and measurement of 3D model, virtual osteotomy and digital fixation surgery were designed. After the digital surgery, anatomical parameters were compared to ipsilateral calcaneus. if the results are acceptable, then surgery was operated. Results 3D visualization model of the calcaneal malunion was constructed and anatomical parameters were measured and then 3D physical model was also printed by rapid prototyping machine. Personal computer could be used to perform virtual osteotomy and internal fixation. Conclusions Digital virtualized reconstructive technique could be used to provide precisely the anatomical and radiological data for judgment of the calcaneal malunion and decision of clinical diagnosis and treatment methods, and it also holds great promise for preoperative design of calcaneal malunion surgery.