3D打印光固化树脂模型在精确评估膝关节损伤及其个体化治疗方案制定中的应用

发布时间：2018-05-06 05:41

本文选题：D打印 + 光固化树脂模型　；参考：《吉林大学学报(医学版)》2017年01期

【摘要】：目的:采用三维(3D)打印光固化树脂模型在体外直观地还原膝关节损伤患者骨及关节面损伤范围及程度,为临床上严重的关节炎患者的诊断及个体化治疗方案的制定提供可靠的依据。方法:选取1例19岁男性创伤性关节炎患者,对患者双下肢进行CT扫描并行三维重建,采用3D打印技术以1∶1的比例打印出患侧及健侧膝关节骨的光固化树脂模型;随后对模型进行CT扫描,将其与患者膝关节CT数据共同三维重建,并进行参数测量,应用统计学方法比较2组参数差异,验证模型精确性;通过术前手术模拟进行个体化治疗方案制定,通过模型进一步确定与该患者匹配的假体型号。结果:该模型各项参数与患者膝关节影像学参数比较差异无统计学意义(P0.05)。术中观察,患者股骨远端、胫骨近端关节面等病损情况与术前3D打印模型高度吻合。所选假体型号匹配,手术时间较同类手术明显缩短,麻醉时间及出血量均有所减少。患者术后短期随访效果良好。结论:3D打印光固化树脂模型具有很高的精确度,可以应用于骨关节炎的辅助诊断和手术模拟,确定更为合理的个体化方案,提高手术疗效。
[Abstract]:Objective: to directly reduce the extent and extent of bone and articular surface injury in patients with knee joint injury in vitro by using 3D printing photocurable resin model. To provide reliable basis for the diagnosis and individualized treatment of severe arthritis. Methods: a 19 year old male patient with traumatic arthritis was selected to perform CT scanning and 3D reconstruction of the lower limbs of the patient. The photocurable resin model of the knee joint bone of the affected and healthy sides was printed with 3D printing technique at 1:1. Then the model was scanned by CT and reconstructed with the CT data of knee joint, and the parameters were measured. The difference of two groups of parameters was compared by statistical method to verify the accuracy of the model. The individualized treatment scheme was established by preoperative surgical simulation and the model was used to determine the model of the prosthesis matching the patient. Results: there was no significant difference between the parameters of the model and the imaging parameters of knee joint (P 0.05). Intraoperative observation showed that the lesions of distal femur and proximal tibia were in good agreement with the preoperative 3D printing model. The selection of prosthesis type match, the operation time is significantly shorter than the similar surgery, anesthesia time and blood loss have been reduced. The effect of short-term follow-up was good. Conclusion the VW 3D photocurable resin model has a high accuracy and can be used in the diagnosis and simulation of osteoarthritis, to determine a more reasonable individualized scheme and to improve the curative effect of the operation.
【作者单位】：吉林大学第二医院骨科诊疗中心;
【基金】：吉林省科技厅科研基金资助课题(2015Q109)
【分类号】：R687.3

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