使用e-规范法确定颈椎矢状位测量的参考值。

IF 2.1 4区医学 Q3 CLINICAL NEUROLOGY

World neurosurgery Pub Date : 2025-06-27 DOI:10.1016/j.wneu.2025.124227

Shenyan Gu , Kaiwen Chen , Dongqing Zhu , Feizhou Lyu , Jianyuan Jiang , Joe F. Jabre , Xinlei Xia , Chaojun Zheng

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引用次数: 0

摘要

目的：探讨用e-norm法建立颈椎矢状线测量参考范围的可行性，并探讨该范围在性别和年龄上的差异。方法：应用e规范法计算1720例受试者枕C2椎夹角（O-C2角）、C2-7 Cobb角、C2-7矢状垂直轴（SVA）和C7斜率的参考值。在男性和女性受试者的不同年龄亚组中测量这些测量的e规范值。结果：根据e规范法获得的平台内数据点，正常O-C2角度为18.5±2.6°，C2-7 Cobb角为8.8±4.5°，C2-7 SVA为1.5±0.4 cm， C7坡度为20.1±3.5°。这些数据点共涉及1617名（1617/1720,94.0%）受试者，其中只有191名（11.1%,191/1720）受试者在平台中包含了所有颈椎矢状面测量值。C2-7 Cobb角和C7斜率e-norm值随女性年龄的增长而增加，而男性只有C7斜率e-norm值随年龄的增长而增加。与不同年龄亚组的女性相比，男性在至少一项颈椎矢状位测量中显示出更高的e-norm值(结论：本研究表明，e-norm可能是建立颈椎矢状位测量参考值的一种简单、可靠和节省成本的方法。这种新方法使我们能够建立性别或年龄亚组的参考值，以研究颈椎矢状位排列的性别差异和年龄趋势。

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Determining the Reference Values of the Measurements of Cervical Sagittal Alignment Using the Extrapolated Norms Method

Objective

To investigate the feasibility of the extrapolated norms (e-norms) method for establishing a reference range for the measurements of cervical sagittal alignment and to explore the differences in these ranges according to sex and age.

Methods

We applied the e-norms method to calculate reference values for the angle between occipital and C2 vertebrae, C2-7 Cobb angle, C2-7 sagittal vertical axis, and C7 slope in 1720 subjects. The e-norms values of these measurements were measured in different age subgroups of male or female subjects.

Results

According to the data points within the plateau obtained via e-norms method, normal angle between occipital and C2 vertebrae was 18.5 ± 2.6°, C2-7 Cobb angle was 8.8 ± 4.5°, C2-7 sagittal vertical axis was 1.5 ± 0.4 cm, and C7 slope was 20.1 ± 3.5°. These data points involved a total of 1617 (1617/1720, 94.0%) subjects, with only 191 (11.1%, 191/1720) subjects having all the cervical sagittal measurements included in the plateau. Both C2-7 Cobb angle and C7 slope e-norms values increase with age in females, whereas only C7 slope e-norms values increase with age in males. The males showed greater e-norms values in at least one of cervical sagittal measurements compared with females in different age subgroups (P < 0.05).

Conclusions

This study demonstrated that e-norms may be a simple, reliable and cost-saving approach for establishing reference values for cervical sagittal measurements. This new method allows us to establish reference values for sex or age subgroups to study the sex differences and trends with age of cervical sagittal alignment.

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来源期刊

World neurosurgery CLINICAL NEUROLOGY-SURGERY

CiteScore

3.90

自引率

15.00%

发文量

1765

审稿时长

47 days

期刊介绍： World Neurosurgery has an open access mirror journal World Neurosurgery: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The journal''s mission is to: -To provide a first-class international forum and a 2-way conduit for dialogue that is relevant to neurosurgeons and providers who care for neurosurgery patients. The categories of the exchanged information include clinical and basic science, as well as global information that provide social, political, educational, economic, cultural or societal insights and knowledge that are of significance and relevance to worldwide neurosurgery patient care. -To act as a primary intellectual catalyst for the stimulation of creativity, the creation of new knowledge, and the enhancement of quality neurosurgical care worldwide. -To provide a forum for communication that enriches the lives of all neurosurgeons and their colleagues; and, in so doing, enriches the lives of their patients. Topics to be addressed in World Neurosurgery include: EDUCATION, ECONOMICS, RESEARCH, POLITICS, HISTORY, CULTURE, CLINICAL SCIENCE, LABORATORY SCIENCE, TECHNOLOGY, OPERATIVE TECHNIQUES, CLINICAL IMAGES, VIDEOS