Sagittal Parameters of Spine and Pelvis in Young Adults Using the EOS Imaging System: Prospective Study of 92 Asymptomatic Subjects
- Author:
Youn Moo HEO
1
;
Tae Kyun KIM
;
Min Gu JANG
;
Jae Kyu CHOI
Author Information
- Publication Type:Clinical Study
- From:Asian Spine Journal 2022;16(5):732-739
- CountryRepublic of Korea
- Language:English
-
Abstract:
Methods:We recruited young adults aged 20–30 years and explained the EOS imaging system. They voluntarily participated in the study. We took full-body standing orthogonal anteroposterior and lateral images using the EOS imaging system (EOS imaging, Paris, France). Then, we measured the pelvic incidence (PI), sacral slope (SS), pelvic tilt (PT), sagittal vertical axis (SVA), T1/T12 kyphosis, and L1/S1 lordosis. We analyzed each parameter using Student t-test, paired t-test, and Pearson’s correlation coefficient.
Results:Ninety-two patients were enrolled in the study. The average PI and SS were 47.18° and 36.03°, respectively. Moreover, PT and SVA were 11.17° and -10.15 mm, respectively. T1/T12 kyphosis was 37.37°, while L1/S1 lordosis was 46.64°. All parameters were enough for normal distribution. Pearson correlation coefficient analysis showed a meaningful correlation between PI and SS and PI and PT (R>0.6, p<0.05).
Conclusions:Measuring spinal and pelvic sagittal values is important. Sagittal parameters could help decide how to operate patients with spinal diseases. We attempted to obtain sagittal values using the EOS imaging system. These parameters could help preoperatively estimate the lumbar lordosis restoration and could also be used as guidelines for spinopelvic sagittal balance.
