首页 | 【重要提示】 | 期刊简介 | 编委会 | 在线投稿 | 期刊稿约 | 联系我们

侯黎升,白雪东,李欢迎,葛丰,何勍,阮狄克,程实,庄严,魏冰,刘娅.下颌角不能准确定位颈椎节段:影像学研究[J].脊柱外科杂志,2018,16(2):103-108.
下颌角不能准确定位颈椎节段:影像学研究     点此下载全文 (Fulltext)
侯黎升1  白雪东1  李欢迎2  葛丰1  何勍1  阮狄克1  程实1  庄严3  魏冰3  刘娅4
1. 海军总医院骨科, 北京 100048;
2. 海军总医院放射科, 北京 100048;
3. 海军总医院计算机管理中心, 北京 100048;
4. 海军总医院耳鼻喉科, 北京 100048
基金项目:海军总医院创新培育基金(CXPY2014-13)
DOI:10.3969/j.issn.1672-2957.2018.02.009
摘要点击次数: 521
全文下载次数: 487
摘要:
      目的 依据颈椎侧位数字摄影(DR)资料,探讨下颌角(MDA)是否可作为颈椎节段体表定位的恒定参考。方法 选取57例男性和66例女性的颈椎闭口标准侧位(中立位)及过伸过屈位的DR资料(照射野含下颌骨全部),半定量测量不同体位下MDA与颈椎节段的对应关系。设定C2/C3水平为0,每上升半个椎体或一个椎间隙,数字减1,反之加1。定量测量不同体位下上颈椎角(AUCS)与全颈椎角(ACS)及其变化,并进行统计学分析。结果 同性别比较,各体位下MDA对应的颈椎节段差异均有统计学意义(P< 0.05);不同性别间比较,过屈位及中立位MDA对应的颈椎节段差异无统计学意义(P>0.05);过伸位时女性MDA对应的颈椎节段高于男性,差异有统计学意义(P< 0.05)。不同性别间比较,各体位下AUCS及ACS差异均无统计学意义(P>0.05)。同性别比较,各体位下AUCS及ACS差异均有统计学意义(P< 0.05)。过屈位向中立位及过伸位变换过程中,AUCS和ACS逐渐增大,过屈位到中立位的角度变化均小于中立位到过伸位的角度变化。结论 中立位时MDA并非恒定对应于C2/C3水平,颈椎屈伸时MDA与颈椎节段的对应关系发生变化,且不局限于1个椎体高度,MDA不能作为颈椎体表定位的恒定参考。
关键词:颈椎  下颌骨  放射摄影影像解释,计算机辅助
Mandibular angle could not be regarded as a constant surgical landmark in identifcation of cervical spinal level:image evidence    Fulltext
HOU Li-sheng1  1  BAI Xue-dong2  LI Huan-ying1  GE Feng1  HE Qing1  RUAN Di-ke1  CHENG Shi3  ZHUANG Yan3  WEI Bing4
1. Department of Orthopaedics, Navy General Hospital, Beijing 100048;
2. Department of Radiology, Navy General Hospital, Beijing 100048;
3. Department of Computer Management Center, Navy General Hospital, Beijing 100048;
4. Department of Otorhinolaryngology, Navy General Hospital, Beijing 100048
Fund Project:
Abstract:
      Objective To explore the reliability of the mandibular angle(MDA) as a constant landmark for the location of cervical segment based on lateral digital radiography(DR) data of the cervical spine. Methods DR image data of the cervical spine at standard lateral(neutral), hyperflexion and hyperextension postures with closed mouth from 57 males and 66 females were introduced while whole mandible was covered in the radiation field for observation and measurement. Semiquantitative measurement of the relationship between MDA and cervical segments was done at different postures. C2/C3 level was assigned as 0, and minus 1 if the spinal level increased 1/2 vertebral body height or 1 disc height, while plus 1 if the spinal level decreased 1/2 vertebral body height or 1 disc height. Quantitative measurement was done to record the angle of upper cervical spine(AUCS) and angle of whole cervical spine(ACS) at different postures. Statistical analyses were done then. Results Compared with the same gender, there were significant differences in the relationship between MDA and cervical segments at different postures (P< 0.05). There was no statistical significance in the relationship between MDA and cervical segments in hyperflexion and neutral postures in different gender(P>0.05). At hyperextension posture, the relationship between MDA and cervical segments of female was higher than that of the male, and the difference was statistically significant(P< 0.05). Comparison between different genders, there was no significant difference in AUCS and ACS at different postures(P>0.05). Compared with the same gender, the differences of AUCS and ACS at different postures were statistically significant(P< 0.05). In the process of the hyperflexion posture to the neutral and hyperextension postures, AUCS and ACS increased gradually, and the angle change of the hyperflexion to the neutral posture was less than that of the neutral posture to the hyperextension posture. Conclusion MDA position is not parallel to C2/C3 level constantly when the neck is at neutral posture. The relationship between MDA position and cervical segments would change but not be limited to 1 vertebral body height when the neck's posture is changed. MDA should not be taken as the constant landmark to determine the cervical segments.
Keywords:Cervical vertebrae  Mandible  Radiographic image interpretation, computer-assisted
HTML   查看全文  查看/发表评论  下载PDF阅读器

您是第4563573位访问者

版权所有 © 脊柱外科杂志    沪ICP备19030205号-1  沪期出证第1907号

地址:上海市成都北路500号峻岭广场 电子信箱:spinejournal@163.com
邮政编码:200003 电话:021-33300675,021-63609919转8537或8855 传真:

本系统由北京勤云科技发展有限公司设计