中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (15): 3906-3912.doi: 10.12307/2026.059

• 骨科植入物Orthopedic implants • 上一篇    下一篇

角度控制椎弓根螺钉置入工具结合 3D 模型及导板辅助置钉的精准度

杨镇源1,张继伟1,张凯东2,马冰清1,张彦军1,李军杰1   

  1. 1甘肃省中医院,甘肃省兰州市   730050;2兰州市骨伤科医院,甘肃省兰州市   730030
  • 接受日期:2025-03-19 出版日期:2026-05-28 发布日期:2025-11-07
  • 通讯作者: 杨镇源,硕士,副主任医师,甘肃省中医院,甘肃省兰州市 730050
  • 作者简介:杨镇源,男,1978年生,陕西省府谷县人,汉族,2010年陕西中医学院毕业,硕士,副主任医师,主要从事脊柱疾患中西医结合诊治方面的研究。
  • 基金资助:
    兰州市科技计划项目(2019-ZD-119),项目负责人:杨镇源

Angle control pedicle screw implantation tool in conjunction with a 3D model and guide plate to assist in accuracy of screw implantation

Yang Zhenyuan1, Zhang Jiwei1, Zhang Kaidong2, Ma Bingqing1, Zhang Yanjun1, Li Junjie1   

  1. 1Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou 730050, Gansu Province, China; 2Lanzhou Orthopedic Hospital, Lanzhou 730030, Gansu Province, China
  • Accepted:2025-03-19 Online:2026-05-28 Published:2025-11-07
  • Contact: Yang Zhenyuan, MS, Associate chief physician, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou 730050, Gansu Province, China
  • About author:Yang Zhenyuan, MS, Associate chief physician, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou 730050, Gansu Province, China
  • Supported by:
    Lanzhou Science and Technology Plan Project, No. 2019-ZD-119 (to YZY)

摘要:

文题释义:

角度控制椎弓根螺钉置入工具:该工具由作者课题组自主研发并应用于临床,是可显著提高置钉精确度的组合式椎弓根螺钉置入工具(专利号:ZL201420307008.8)。
3D模型及导板:基于患者个体的置钉目标椎体节段的三维CT数据,导入计算机,并使用3D打印技术打印出实体模型,结合“快速成型技术”和“逆向工程原理”为理论基础的3D打印导航模板以辅助置钉。

摘要
背景:椎弓根螺钉目前广泛应用于脊柱外科临床,其精准置入为关注焦点。此次研究探寻了一种新的椎弓根螺钉置入方法,以期提高临床置钉的准确率。
目的:观察应用自主研制的角度控制椎弓根螺钉置入工具结合3D模型及导板在辅助椎弓根螺钉置入中的应用价值。
方法:选择2023年3月至2024年6月接受椎弓根螺钉内固定治疗的患者共计96例,随机分成2组,辅助组和徒手组各48例。辅助组使用角度控制椎弓根螺钉置入工具配合3D模型和导板辅助螺钉置入,徒手组则依赖C型臂X射线机进行定位,徒手置入螺钉。所有患者均进行CT检查以评估两种方式下单枚螺钉置入时间及精确度,另外对比C型臂X射线机使用频率。
结果与结论:①辅助组共置入286枚螺钉,置钉用时(2.51±1.26) min/枚,精确置入成功率达到95.8%,C型臂透视次数为(1.45±2.12)次/枚;徒手组共置入螺钉264枚,置入用时为(3.27±1.54) min/枚,精确置入成功率为87.2%,C型臂透视次数是(2.19±1.73)次/枚;②相较而言,辅助组在这3个指标上均表现出显著优势:单枚螺钉置入时间更短,置钉准确率更高,且C型臂透视次数也相对较低,与徒手组相比差异有显著性意义(P < 0.05);③提示在实施脊柱椎弓根钉置入时,利用角度控制的椎弓根螺钉置入工具配合3D模型和导板能有效提升置钉的精确度,降低所需时间,并且减少辐射暴露的风险,这无疑具备极高的临床实用意义。


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

关键词: 椎弓根螺钉, 内固定, 角度控制, 3D模型, 导板, 置钉

Abstract: BACKGROUND: Pedicle screws are widely used in spine surgery, and their precise placement is the focus of attention. In this study, a new pedicle screw placement method was explored to improve the accuracy of clinical nail placement.
OBJECTIVE: To observe the application value of the self-developed angle control pedicle screw implantation tool combined with 3D model and guide plate in auxiliary pedicle screw implantation. 
METHODS: Totally 96 patients with spinal surgery who received pedicle screw internal fixation from March 2023 to June 2024 were selected and divided into two groups by random sampling method, namely the assisted group and the freehand group, with 48 patients in each group. The assisted group used an angle-controlled pedicle screw implantation tool with 3D model and guide plate to assist screw implantation, while the freehand group relied on C-arm X-ray machine for positioning and freehand screw implantation. All patients underwent CT examination to evaluate the differences in the time, accuracy, and frequency of C-arm X-ray machine use between the two methods. 
RESULTS AND CONCLUSION: (1) A total of 286 screws were implanted in the assisted group, with an implantation time of (2.51±1.26) min/screw and an accurate implantation success rate of 95.8%, while (1.45±2.12) times/screw were required by using C-arm fluoroscopy equipment; 264 screws were implanted in the freehand group, with an implantation time of (3.27±1.54) min/screw, an accurate implantation success rate of 87.2%, and the number of C-arm fluoroscopy was (2.19±1.73) times/screw. (2) In comparison, the assisted group showed significant advantages in these three indicators: shorter single screw implantation time, higher screw placement accuracy, and lower C-arm fluoroscopy times, which were significantly different from those in the freehand group (P < 0.05). (3) It is concluded that the use of angle-controlled pedicle screw implantation tools, combined with 3D model and guide plate assist, in pedicle screw implantation surgery can significantly enhance accuracy, shorten the time needed for placement, as well as reduce radiation exposure, all of which have clinical applications.

Key words: ">pedicle screw, internal fixation, angle control, 3D model, guide plate, nail placement

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