中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (48): 7225-7231.doi: 10.3969/j.issn.2095-4344.2016.48.012

• 数字化骨科 digital orthopedics • 上一篇    下一篇

基于3D打印技术选择性椎弓根螺钉治疗青少年特发性脊柱侧凸

张树芳,陈荣春,郭朝阳,叶书熙,钟红发,游 辉   

  1. 南昌大学附属赣州医院脊柱外科,江西省赣州市 341000
  • 修回日期:2016-09-08 出版日期:2016-11-25 发布日期:2016-11-25
  • 通讯作者: 郭朝阳,副主任医师,南昌大学附属赣州医院脊柱外科,江西省赣州市 341000
  • 作者简介:张树芳,男,1983年生,江西省赣州市人,2012年南方医科大学毕业,博士,主治医师,主要从事脊柱外科工作。
  • 基金资助:

    江西省卫计委课题(20157172)

Three-dimensional printing-assisted selective segmental pedjcle screws for adolescent idiopathic scoliosis

Zhang Shu-fang, Chen Rong-chun, Guo Chao-yang, Ye Shu-xi, Zhong Hong-fa, You Hui   

  1. Department of Spine Surgery, Ganzhou Hospital Affiliated to Nanchang University, Ganzhou 341000, Jiangxi Province, China
  • Revised:2016-09-08 Online:2016-11-25 Published:2016-11-25
  • Contact: Guo Chao-yang, Associate chief physician, Department of Spine Surgery, Ganzhou Hospital Affiliated to Nanchang University, Ganzhou 341000, Jiangxi Province, China
  • About author:Zhang Shu-fang, M.D., Attending physician, Department of Spine Surgery, Ganzhou Hospital Affiliated to Nanchang University, Ganzhou 341000, Jiangxi Province, China
  • Supported by:

    the Project of the Health and Family Planning Commission of Jiangxi Province, No. 20157172

摘要:

文章快速阅读:

文题释义:
3D 打印:内固定前对患者进行CT扫描,获得相关数据,通过可以“打印”出真实物体的3D 打印机,打印出脊柱侧凸模型。在传统的脊柱侧凸矫形术中,脊柱外科医师是通过内固定前X射线进行规划,术中是通过C臂X射线及手感来进行椎弓根螺钉置入和矫形。但这种手术方案的质量高低主要依赖于医师个体的手术临经验和技能,而且这种方式无法被参与操作的的每一位成员共享。通过3D打印技术,脊柱外科医师可以通过模拟真实的环境中进行模拟矫形手术及矫形后结果预测,从而减少手术时间和手术创伤。
选择性椎弓根螺钉:青少年特发性脊柱侧凸椎弓根钉置入增多同样也增加脊髓、神经损伤的风险,特别是上胸椎,一旦发生,其后果十分严重,选择关键椎置钉明显降低了手术风险及患者的医疗费用。
 
摘要
背景:目前外科手术前通过3D打印技术进行规划和手术设计已经成为一种发展趋势,并且应用于骨盆骨折、肿瘤切除并取得了良好的效果,但应用于青少年特发性脊柱侧凸的术前规划的报道还很少。
目的:探讨青少年特发性脊柱侧凸患者内固定前采用3D打印仿真脊柱侧凸型体外模拟手内固定后应用选择性椎弓根螺钉治疗的临床疗效。
方法:回顾性分析2014年6月至2015年6月青少年特发性脊柱侧凸患者70例,内固定前先将患者CT薄层扫描数据用DICOM格式导入Mimics软件进行三维重建、虚拟内固定设计,采用3D技术打印出患者虚拟复位后的仿真脊柱侧凸模型,并按照虚拟内固定设计方案进行椎弓根螺钉最佳位置设计、螺钉长度测量、螺钉进入途径设计等一系列内固定前模拟内固定,然后现实手术行选择性节段椎弓根螺钉内固定三维矫形。
结果与结论:与内固定前相比,患者内固定后冠状面主胸弯Cobb角、顶椎偏距明显改善,且未出现神经、血管和内脏损伤等并发症,同时椎弓根螺钉置入良好。说明3D打印技术可使手术更加精准、安全、完美及脊柱矫正率提高。内固定前模拟螺钉置入、螺钉数据测量缩短了手术时间。

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

ORCID:
0000-0002-7437-1264(郭朝阳)

关键词: 骨科植入物, 脊柱植入物, 青少年特发性脊柱侧凸, 脊柱植入物, 腰椎, 外科手术, 椎弓根螺钉, 数字化设计, 3D 打印, 准确性

Abstract:

BACKGROUND: Three-dimensional (3D) printing has been popular for preoperative planning, and has been extensively used in bone tumor resection and pelvic fractures achieving satisfactory treatment outcomes. However, seldom used in adolescent idiopathic scoliosis.

OBJECTIVE: To evaluate the clinical effect of 3D printing-assisted selective segmental pedicle screws for adolescent idiopathic scoliosis.
METHODS: Seventy adolescent patients with idiopathic scoliosis from June 2014 to June 2015 were enrolled for retrospective analysis. Thin-layer computed tomography scan data of the patients were input into Mimics software in DICOM format for 3D editing and virtual surgery before surgery. The scoliosis model was created by 3D printing. Simulated operation was performed to design the optimum location of the plate screw, screw length measurement and screwing approach, and then real selective segmental pedicle screws were conducted.
RESULTS AND CONCLUSION: Cobb angle of major thoracic curve in standing comnal plane and the distance of apical vertebra shift after operation were significantly improved compared with pre-operation (P < 0.05), without nerve, blood vessel or visceral injuries. The placement site, direction and length of pedicle screws were consistent with those in 3D printing model. These results suggest that 3D printing-assisted selective segmental pedicle screws can obtain accurate, safe and perfect outcomes in the treatment of adolescent idiopathic scoliosis through improving the correction rate and shortening the operation time.

 

Key words:  Scoliosis, Computer-Aided Design, Tissue Engineering

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