中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (22): 3315-3321.doi: 10.3969/j.issn.2095-4344.2016.22.017

• 骨与关节图像与影像 bone and joint imaging • 上一篇    下一篇

骨质疏松性椎体压缩骨折:椎体骨折数目和C7矢状位比值的关系

张义龙,孙志杰,王雅辉,任 磊,孙 贺   

  1. 承德医学院附属医院脊柱外科,河北省承德市 067000
  • 修回日期:2016-04-10 出版日期:2016-05-27 发布日期:2016-05-27
  • 通讯作者: 孙贺,主任医师,承德医学院附属医院脊柱外科,河北省承德市 067000
  • 作者简介:张义龙,男,1978年生,河北省深泽县人,汉族,2001年河北医科大学毕业,硕士,副主任医师,主要从事脊柱外科方面的研究。
  • 基金资助:

    承德医学院附属医院科研青年基金(201406)“脊柱矢状位影像学参数与椎体骨质疏松性骨折的相关性分析”

Osteoporotic vertebral compression fractures: correlation between number of fractured vertebrae and C7 plumb line/sacro-femoral distance ratio

Zhang Yi-long, Sun Zhi-jie, Wang Ya-hui, Ren Lei, Sun He   

  1. Department of Spine Surgery, the Affiliated Hospital of Chengde Medical College, Chengde 067000, Hebei Province, China
  • Revised:2016-04-10 Online:2016-05-27 Published:2016-05-27
  • Contact: Sun He, Chief physician, Department of Spine Surgery, the Affiliated Hospital of Chengde Medical College, Chengde 067000, Hebei Province, China
  • About author:Zhang Yi-long, Master, Associate chief physician, Department of Spine Surgery, the Affiliated Hospital of Chengde Medical College, Chengde 067000, Hebei Province, China
  • Supported by:

    the Scientific Research Youth Foundation of Affiliated Hospital of Chengde Medical College, No. 201406

摘要:

文章快速阅读:

 
 
 
文题释义:
骨质疏松性椎体压缩骨折:骨质疏松造成骨组织内钙的流失,引起骨密度和骨强度的降低,容易引发椎体压缩性骨折,发生时可以无明显受伤史,发生的具体时间不能确切地认定。一般患者为高龄,骨质疏松存在,女性居多,容易造成慢性背痛,尤其是多个椎体骨折后常造成脊柱形态发生改变,形成长期的慢性背痛,严重影响生活。
矢状位失衡:脊柱有无整体失衡主要取决于骶骨后上角和C7椎体中心的垂直位置,采用C7椎体中点铅垂线至骶骨后上角距离与骶股间距的比值来评估有无矢状位失衡,当C7椎体中点铅垂线位于骶骨后上角后方时该值为负,C7椎体中点铅垂线位于骶骨后上角前方时该值为正,位于髋关节中心前方时该值> 1。正常情况下,该值范围为-0.9±1,该比值≤ 0为理想的平衡状态,0< 比值≤ 0.5为平衡代偿,比值> 0.5为失衡。
 
摘要
背景:国内外研究对于椎体骨质疏松性骨折造成的矢状位失衡重视不够。
目的:评估骨质疏松性椎体压缩骨折与脊柱矢状位失衡的相关性。
方法:纳入2013年2月至2015年8月在承德医学院附属医院脊柱外科就诊的陈旧性骨质疏松性椎体压缩骨折患者60例,作为观察组;另外选择体检科同龄老年健康查体人群60例作为对照组。拍摄两组脊柱全长正侧位X射线片记录脊柱椎体骨折数目和位置,测量矢状位参数包括胸椎后凸角、腰椎前凸角、T1脊柱骨盆倾斜角、C7矢状位比值,进行组间比较。将观察组中椎体骨折数目按单个椎体、双个椎体、3个及以上椎体分为3个亚组,比较3个亚组间C7矢状位比值的差别,分析椎体骨折数目和C7矢状位比值之间的相关关系。

结果与结论:①观察组胸椎后凸角显著大于对照组,差异有显著性意义(P < 0.05);观察组腰椎前凸角显著小于对照组,差异有显著性意义(P < 0.05);观察组T1脊柱骨盆倾斜角为(-1.81±1.48)°,对照组为(-3.35±1.22)°,两组相比差异有显著性意义(P < 0.05);观察组C7矢状位比值显著大于对照组,差异有显著性意义(P < 0.05);②观察组中单椎骨折亚组患者4例,双椎骨折25例,3个及以上椎骨折31例,3个亚组间C7矢状位比值比较,差异有显著性意义(P < 0.05);而且骨折数目与C7矢状位比值呈正相关,相关系数为0.747;③结果提示,骨质疏松性椎体压缩骨折可以引起脊柱矢状位序列改变,随骨折椎体数目增多出现整体矢状位序列失衡,脊柱重心前移,骨折数目与重心前移呈正相关。

关键词: 骨科植入物, 脊柱植入物, 胸椎, 腰椎, 骨盆, 骨质疏松, 椎体压缩骨折, 矢状位参数, 矢状位平衡, Cobb角, 放射摄影术

Abstract:

BACKGROUND: Sagittal imbalance induced by vertebral osteoporotic fractures has not been paid enough attention in previous studies. 

OBJECTIVE: To assess the correlation of osteoporotic vertebral compression fracture and spinal sagittal imbalance.
METHODS: Sixty patients with old osteoporotic vertebral compression fracture, who were treated in the Department of Spine Surgery, the Affiliated Hospital of Chengde Medical College from February 2013 to August 2015, were enrolled in this study as the observation group. Sixty healthy old people from physical examination center were enrolled as the control group. The whole-spine anteroposterior and lateral X-ray films were taken in both groups. The number and the location of fractured vertebrae were recorded. Sagittal parameters of both groups including thoracic kyphotic angle, lumbar lordotic angle, T1-spinopelvic inclination angle and the C7 plumb line/sacro-femoral distance (PL/SFD) ratio were measured and compared among groups. The observation group was divided into three subgroups according to the number of fractured vertebrae, i.e., single-vertebrae fracture subgroup, double-vertebrae fracture subgroup and above triple-vertebrae fracture subgroup. The C7 PL/SFD ratio of the three subgroups was compared. The correlation between the number of fractured vertebrae and the C7 PL/SFD ratio was analyzed.
RESULTS AND CONCLUSION: (1) The thoracic kyphotic angle of the observation group was bigger than that of the control group (P < 0.05). The lumbar lordotic angle of the observation group was smaller than that of the control group (P < 0.05). The absolute value of the T1-spinopelvic inclination angle of the observation group (-1.81±1.48)° was smaller than that of the control group (-3.35±1.22)° (P < 0.05). The C7 PL/SFD ratio of the observation group was significantly bigger than that of the control group (P < 0.05). (2) In the observation group, there were 4 cases of single-vertebrae fracture, 25 cases of double-vertebrae fracture and 31 cases of above triple-vertebrae fracture. Significant differences in the C7 PL/SFD ratio were determined among subgroups (P < 0.05). The number of fractured vertebrae was positively correlated with the C7 PL/SFD ratio; the correlation coefficient was 0.747. (3) Results indicated that osteoporotic vertebral compression fracture can change spinal local sagittal alignment. Multiple compression fractures of vertebrae can cause spinal sagittal imbalance. The gravity center of human body shifts forward. The number of fractured vertebrae was positively correlated with the range of shift forward.

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

Key words: Thoracic Vertebrae, Lumbar Vertebrae, Pelvis, Osteoporotic Fractures, Tissue Engineering

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