计算机辅助术前矫正模型设计结合3D打印技术在脊柱畸形治疗中的应用

Application of computer-assisted preoperative correction model design combined with 3D printing technology in the treatment of spinal deformities

Application of computer-assisted preoperative correction model design combined with 3D printing technology in the treatment of spinal deformities

Abstract: Objective To investigate the application and value of three-dimensional (3D) printing technology combined with computer-assisted design in the treatment of spinal deformities. Methods A retrospective study was conducted to analyze the clinical data of 26 patients with spinal deformities who were treated in Xinqiao Hospital, the Army Medical University from January 2016 to March 2018. Based on the imaging data, Mimics software was used to establish a correction model on the computer, and then 3D printing technology was adopted to create a solid model for intraoperative guidance. The immediate result of surgical correction was compared with preoperative morphology, and the differences between follow-up results and the designed correction model were compared. Results The surgery was successful in all 26 patients. No significant differences were found in the coronal view, sagittal Cobb angle, C7 plumb line-center sacral vertical line, apical vertebra translation and sagittal vertebral axis between the preoperative design model and the actual measured values at various stages after surgery (P>0.05). Conclusion A reasonable preoperative design combined with model printed by high-precision 3D printing technology provides an excellent guidance for spine surgeons. The postoperative data of the patients included in the study were consistent with the preoperative design model, which reliably reflected the effectiveness of the technique which is worthy of further research.