基于3D MRI与CT建模的3D打印模型在骶骨肿瘤术前规划中的应用

目的 探索基于3D MRI与CT建模的3D打印模型在骶骨肿瘤术前规划中的应用价值.方法 回顾性分析华中科技大学同济医学院附属同济医院2015年6月至2020年6月收治的接受一期后路肿瘤切除+腰椎-骨盆重建术的骶骨肿瘤患者20例,分为两组,每组10例.其中模型组采用3D MRI与CT建模的3D打印模型辅助术前规划,常规组...

Application of 3D printed model based on 3D MRI and CT modeling in preoperative planning of sacral tumors

Objective To investigate the application value of 3D printed model based on 3D MRI and CT modeling in preoperative planning of sacral tumors. Methods A retrospective analysis was performed on the cases with sacral tumor admitted between June 2015 and June 2020 in Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, twenty patients were divided into two groups (n=10, per group) and underwent resection of tumors and reconstruction of lumbar-pelvic stability by one-stage posterior approach. In the model group, 3D printed model based on 3D MRI and CT modeling was used to assist preoperative planning, while the conventional group received conventional surgery. Operation time, blood loss, drainage volume, hospital stay and postoperative visual simulation score(VAS) were compared between two groups, internal fixation and clinical efficacy were also evaluated. Results The 3D printed model clearly presented bone, tumor, nerve, blood vessel and other tissue structures in the lesion area, and the surgery simulation was carried out in vitro. Compared with the conventional group[(12.6±4.5) h], the operation time[(8.9±3.1) h] in model group was significantly decreased (P<0.05), and there were no significant differences in blood loss, drainage volume, length of hospital stay and postoperative visual simulation score between two groups (P>0.05). In model group all cases had good internal fixation position and 2 cases experienced wound infection. In conventional group, 1 case underwent pedicle screw failure and 2 cases experienced wound infection. Conclusion 3D printed model based on 3D MRI and CT modeling can effectively assist the preoperative planning of sacral tumor, therefore, it can help to shorten operation time and improve the operation efficiency.