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Research article
Changqing Zhao
Shanghai Ninth People's Hospital,Shanghai Jiao Tong University School of Medicine
Corresponding Author
ORCiD: https://orcid.org/0000-0003-1090-7776
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This work is licensed under a CC BY 4.0 License. Read Full License
Objective To measure the sagittal configurations of the sacrum using computed tomography (CT), and to investigate the correlation between the sagittal configuration of the sacrum and pelvic incidence.
Methods The computed topographies of complete pelvic imaging between 2006 and 2018 was retrospectively studied. Measurements of pelvic and sacral morphological parameters were performed on the midsagittal plane of the 2D reconstruction images of computed tomography. Pelvic incidence (PI) (STA) were measured as previously described, and sacral table angle, sacral incidence (SI), sacral segmental vertebral angle (SSVA), sacral segmental kyphosis (SSK), central angle (SCA), arc length (SAL) as well as arc radius (SAR) were introduced to describe the segmental morphology of sacrum. Pearson Correlation Coefficient and Stepwise Regression Analysis were used to determine the relationship between PI and sacral morphological parameters.
Results A total of 304 subjects were finally included in this study. The average age of the patients were 46.22 ± 15.92 years, and the average PI was 45.24±8.68°. Most of the sacral morphological parameters were not different as affected by gender or age. The morphological parameters of S1: S1I, SSVA1 and STA were finally confirmed to be closely correlated with PI, while no significant correlation between sacral curvature (SCA) and PI was identified, and morphological parameters of other sacral segments were not correlated to PI either.
Conclusion The morphological parameters of S1 are more closely correlated with PI, and the sacral incidence of S1 might serve as a useful tool for the calculation of PI.
Keywords
pelvic incidence, sacrum, sacral morphology, sacral curvature
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A new preprint design is coming!
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This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Research article
Changqing Zhao
Shanghai Ninth People's Hospital,Shanghai Jiao Tong University School of Medicine
Corresponding Author
ORCiD: https://orcid.org/0000-0003-1090-7776
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 01 Apr, 2020
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Orthopedic Surgery
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Objective To measure the sagittal configurations of the sacrum using computed tomography (CT), and to investigate the correlation between the sagittal configuration of the sacrum and pelvic incidence.
Methods The computed topographies of complete pelvic imaging between 2006 and 2018 was retrospectively studied. Measurements of pelvic and sacral morphological parameters were performed on the midsagittal plane of the 2D reconstruction images of computed tomography. Pelvic incidence (PI) (STA) were measured as previously described, and sacral table angle, sacral incidence (SI), sacral segmental vertebral angle (SSVA), sacral segmental kyphosis (SSK), central angle (SCA), arc length (SAL) as well as arc radius (SAR) were introduced to describe the segmental morphology of sacrum. Pearson Correlation Coefficient and Stepwise Regression Analysis were used to determine the relationship between PI and sacral morphological parameters.
Results A total of 304 subjects were finally included in this study. The average age of the patients were 46.22 ± 15.92 years, and the average PI was 45.24±8.68°. Most of the sacral morphological parameters were not different as affected by gender or age. The morphological parameters of S1: S1I, SSVA1 and STA were finally confirmed to be closely correlated with PI, while no significant correlation between sacral curvature (SCA) and PI was identified, and morphological parameters of other sacral segments were not correlated to PI either.
Conclusion The morphological parameters of S1 are more closely correlated with PI, and the sacral incidence of S1 might serve as a useful tool for the calculation of PI.
Figure 1
Figure 2
Figure 3
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