ArticleFrontiers in surgery2025
Correlation between sagittal and inclined angles of cervical facet joints and cervical disc herniation: a radiological observational study.
Article in Frontiers in surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Previous studies have found that asymmetry of cervical facet joints is associated with cervical disc herniation. However, the effect of facet joint angle on disc herniation is inconclusive. Further identification of the pathological anatomic features of cervical disc herniation is helpful for the prevention and treatment of the disease. Objective: To explore the relationship between sagittal angle or inclined angle of cervical facet joint and CDH. Methods: Among patients who visited the First Affiliated Hospital and the Third Affiliated Hospital of Guangzhou University of Chinese Medicine from June 2015 to December 2022, 271 patients with single-segment CDH (79 in C4/5 segment, 122 in C5/6 segment, and 70 in C6/7 segment) were screened for inclusion in the CDH group. At the same time, 132 age- and gender-matched healthy subjects were randomly enrolled as a control group. Data on the bilateral sagittal angles and inclined angles of cervical facet joints were collected from both groups. Intergroup comparisons were performed after Bonferroni correction and adjustment for confounding factors. Results: There were no significant differences in gender, age, or BMI between the two groups. However, the C2-7 Cobb angle was significantly smaller and the intervertebral disc height at the corresponding affected segments was significantly lower in the CDH group than in the control group ( Conclusion: Sagittal angle asymmetry of facet joints at the C4/5 segment is associated with lower cervical disc herniation. A significant reduction in the average inclined angle (tendency to be horizontal) of the facet joints at the corresponding segments in patients with single-segment CDH at C5/6 and C6/7 is an important pathophysiological and anatomical characteristic of the disease. Additionally, the intergroup difference in the average sagittal angle may be influenced by the degree of cervical lordosis and intervertebral disc height.
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