3D打印技术辅助儿童陈旧性距骨骨折的应用

摘要

目的：探讨3D打印技术在儿童陈旧性距骨骨折的临床应用。方法：采集6例陈旧性距骨骨折患儿足踝部CT断层扫描数据，进行数字化三维重建和3D打印制作，在模型上进行模拟手术，并将其应用于诊治、手术规划和术中参照。结果：平均随访16个月，所有患儿均在3D打印实体模型指导下完成，手术过程顺利，无一例发生距骨坏死和伤口感染。6例患儿术中所见与术前数字化三维重建和3D打印实体模型的畸形结构变化一致。结论：数字化重建与3D打印技术能够准确直观地反映儿童陈旧性距骨骨折畸形的立体形态和解剖结构的空间关系，对临床医生的诊断、手术计划等有较大帮助，并且减少了手术操作时间，达到更佳的手术效果。%Objective:To investigate the application of 3D printing in the treatment of old talus fractures in children. Method:The CT scans of 6 patients who sustained complicated flatfoot were used for three-dimensional reconstruction and the 3D printing model (1:1) of the feet and ankles were achieved for clinical practice. The operation was simulated and was designed on the 3D printing model according to the surgical procedure Result:The average follow-up time were 16 months. All operations for these patients were successfully performed under the guidance of 3-D entity model, no case was complicated with superficial skin flap necrosis or talar body avascular necrosis. Conclusion:The digital three-dimensional model of old talus fractures in children could reflect the detailed three-dimensional shape of complicated deformity exactly and directly, which is helpful for diagnosing and planning of operations.