中国临床解剖学杂志 ›› 2013, Vol. 31 ›› Issue (4): 397-401.

• 数字解剖 • 上一篇    下一篇

耻骨上支骨折髓内螺钉进钉通道的数字解剖学研究

杨勇1, 王磊2, 王福川1, 张少武1, 董云1   

  1. 1.河北医科大学附属邢台市人民医院创伤骨科手外科,  邢台   054001;    2.河北医科大学人体解剖学教研室,  石家庄   050017
  • 收稿日期:2012-10-13 出版日期:2013-07-25 发布日期:2013-07-24
  • 通讯作者: 王磊,博士,副教授,硕士生导师, E-mail:wangleilion1 @126.com E-mail:coffee2083@126.com
  • 作者简介:杨勇(1981-),男,硕士,主治医师,研究方向:人体解剖学,骨外科

Digital anatomical study of the superior pubic ramus screw channel

YANG Yong1,WANG Lei2,WANG Fu-chuan1,ZHANG Shao-wu1,DONG Yun1   

  1. 1.Department of Orthopedics, Hebei Medical University Affiliated Xingtai People's Hospital, Xingtai 054000; 2.Department of Anatomy, Hebei Medical University, Shijiazhuang 050017, China
  • Received:2012-10-13 Online:2013-07-25 Published:2013-07-24

摘要:

目的 以数字解剖学的方法评估耻骨上支骨折髓内螺钉内固定的安全进钉通道。  方法 回顾性分析我科17例成人患者(34例半骨盆)的骨盆计算机断层扫描(CT)图像,采用Mimics软件,依据耻骨上支骨折的常见部位,置入虚拟圆柱体,采用三维测量工具,测量最大进钉通道,最大长度,探寻进钉点位置,进钉通道大小与角度之间的特征规律,确定安全范围。  结果 对于内侧1/2骨折,虚拟三维圆柱体的最大直径平均为(9.64±0.79)mm,长度为(67.88±6.07)mm,螺钉与矢状面的夹角变化范围为(44.03± 2.29)°~(50.41±3.33)°;对于外侧1/2骨折,虚拟三维圆柱体的最大直径平均为(11.25±1.45)mm,长度为(96.82±6.76)mm,螺钉与矢状面的夹角变化范围为(36.12±2.76)°~(43.38±3.30)°。在男性和女性之间的差异有统计学意义,内外侧两组数据之间的差异有统计学意义。  结论 耻骨上支进钉通道的确定可提高耻骨上支骨折髓内螺钉固定的安全性与准确性。

关键词: 耻骨上支骨折, 进钉通道, 三维重建, 数字解剖, 内固定

Abstract:

Objective  To investigate the safe range of intramedullary screw channel of superior pubic ramus fractures with the methods of digital anatomy. Methods A retrospective analysis was conducted with computed tomography (CT) images of pelvis from17 adult patients (34 cases of hemipelvis). We built virtual cylinder of intramedullary screw channel with Mimics according to the common types of superior pubic ramus fracture. With three-dimensional measurement tools, we measured the maximum width, depth, range of entry points and angles of the screw channels, determined the patterns of them and the scope of the security. Results For medial 1/2 fractures, the virtual cylindrical was of an average of (9.64±0.79) mm in maximum diameter, (67.88±6.07) mm in length and sagittal screw angle ranged from (44.03±2.29)° to (50.41±3.33)°; in terms of the lateral 1/2 fracture, the maximum diameter of the virtual cylindrical was (11.25±1.45) mm, (96.82±6.76) mm in length, the angle between the screw and the sagittal plane ranged from (36.12±2.76)° to (43.38± 3.30)°. The differences between men and women were statistically significant, the data of different location of fractures between the two groups were statistically significant. Conclusion Digital anatomical studies of the safe range of intramedullary screw channel of superior pubic ramus fractures increase the safety and accuracy of the intramedullary screws fixation.

Key words: Superior pubic ramus, Screw channel, Three-dimensional reconstruction, Digital anatomy, Internal fixation

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