《口腔颌面外科杂志》 ›› 2013, Vol. 23 ›› Issue (4): 257-260. doi: 10.3969/j.issn.1005-4979.2013.04.006

• 临床研究 • 上一篇    下一篇

颧骨复合体骨折手术复位标志点三维测量的临床应用

曾勇,   张萍,   李鹏飞,   陈勇,   张纲   

  1. 第三军医大学新桥医院口腔颌面外科,重庆  400037
  • 出版日期:2013-08-28 发布日期:2013-11-07
  • 通讯作者: 张纲,副教授. E-mail:xqyykqk@163.com
  • 作者简介:曾勇(1980—),男,重庆人,硕士. E-mail 59080290@qq.com
  • 基金资助:

    第三军医大学临床科研课题基金资助项目(2007D178)

The Role of 3D Computed Topography in the Design and Management
of Zygomatic Maxillary Complex Fracture

ZENG Yong, ZHANG Ping, LI Peng-fei, CHEN Yong, ZHANG Gang   

  1. Department of Stomatology, Third Military Medical University Xinqiao Hospital,
    Chongqing 400037, China
  • Online:2013-08-28 Published:2013-11-07

摘要: 目的:筛选颧骨复合体表面标志点,建立单侧颧骨复合体骨折移位的CT测量方法。探讨运用颧骨复合体表面复位标志点指导骨折手术治疗的可行性,为临床治疗计划提供参考。方法:收集我科收治颌面部创伤患者的临床资料。选取其中影像资料完整的单侧颧骨复合体骨折29例进行研究。利用Mimics软件重新分析建模。从双侧颧骨复合体与邻近骨骼解剖标志点中,选取同样两点之间的距离进行测量分析。得到骨折段向后、向内、向下移位程度,进一步总结出颧骨复合体骨折后断段移位的规律,为复位手术提供参考。结果:筛选出眶额颧点、颧颌缝眶下缘点、颧颌缝点、颧突点、乳突点、颞骨根点,共6个解剖标志点,对29例单侧颧骨复合体骨折进行了多距离的测量,建立了单侧颧骨复合体骨折的数字化测量系统;重点对颧突点和颧弓突点进行了测量。测量结果发现颧骨复合体骨折时,颧骨体骨折块多向后、向内移位。骨折评分越高或者骨折移位程度越严重的,更需要手术复位。在内外方向上移位严重的,最具有明确手术指征,迫切需要进行手术复位。结论:利用三维CT数据创建三维数字模型,筛选出的6个解剖标志点可用于颧骨复合体骨折移位的测量,建立的颧骨复合体骨折的数字化测量方法可以指导临床。

关键词: 三维CT测量技术, 头影测量, 骨折, 颧骨复合体, 临床应用

Abstract: Objective:  To find special anatomic landmarks in zygomatic maxillary complex (ZMC) in order to establish a reliable CT measuring method for quantitative diagnosis and management of unilateral ZMC fractures. Method: A total of 29 patients with hemilateral ZMC fractures were retrospectively reviewed and analyzed in this study. Segmentation of the DICOM files was performed using Mimics and the rendered 3-dimensional reconstruction was produced in STL format for rapid prototyping. Standard anatomy points from both sides of ZMC and adjacent bone were selected, a total of 6 points (fmo, oz, zm, mp, Ms, tp) were employed in this study. Distances of selected same points from both sides were measured by Mimics software. The degree of displacement of the zygomatic segment to backward, inward and downward were obtained, and the digital measurement system of ZMC fracture was established.  Results: Measurement results showed that the displacement of the zygoma segment in most patients was backward and inward. Higher fracture scores, and/or severe displacement in one or more dimensions were more likely to require operative reduction. Conclusion: This study suggest that using the three-dimensional CT data to construct a 3D reconstruction model and selected 6 anatomical landmarks can be used for the measurement of displacement of ZMC and a guidance for surgical reduction.

Key words:  three dimensional CT measurement, cephalometric, fracture, zygomatic maxillary complex, clinical application

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