The Association of Sacral Table Angle Measurements With Spondylolytic and Spondylolisthetic Defects at the Lumbosacral Articulation: A Radiographic Analysis

Tallarico, Richard A.; Fredrickson, Bruce E.; Whitesides, Thomas E.; Lavelle, William F.

doi:10.1016/j.jspd.2014.11.007

Cited by 10 publications

(13 citation statements)

References 35 publications

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“…The PI was then measured subtended by a line from the bicoxofemoral axis to the middle of the sacral endplate and a line drawn perpendicular to the sacral endplate (Figure 1). STA and SK both correlate strongly with PI in adult cohorts and have been shown to reflect, in some instances, pathologic processes such as spondylolysis so were measured in addition to PI to ascertain how these values change with maturation (McKay et al, 2018;Tallarico et al, 2015;Whitesides Jr. et al, 2005).…”

Section: Methodsmentioning

confidence: 99%

Computed tomography study of the relationship between pelvic incidence and bony contribution to lumbar lordosis in children

Baker

2021

Clinical Anatomy

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There is little data regarding the relationship in children and how it may change with aging. The aim of this radiographic study was to define the relationship between pelvic incidence (PI) and segmental vertebral body lordosis through childhood. In 150 children, CT scans of the lumbar spine and pelvis were analyzed measuring PI, sacral table angle (STA), sacral kyphosis (SK), and segmental lordosis (SL) individually L1-L5. Children were grouped by age: (1) 0-60 months; (2) 61-120 months;(3) 121-185 months. Mean PI for the entire cohort was 40.4, mean SL for L1-0.6, L2 0.0, L3 1.8, L4, 4.7, and L5 11.4. There were 40 children in Group 1, 63 in Group 2 and 37 in Group 3. SL differed between age groups at all levels except at L2. L1 and L2 became more kyphotic with increasing age; L3, L4, and L5 became more lordotic with increasing age. The correlation between PI and SL at each level became stronger with increasing age. Similarly, the correlation between PI and STA and between PI and SK also became stronger with increasing age. As children mature, the relationship between PI and segmental lordosis at each level of the lumbar spine becomes stronger-the relationship between PI and lordosis trends toward that seen in the adult. Future work should aim to define when the adult PI-LL relationship is realized.

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Section: Methodsmentioning

confidence: 99%

Computed tomography study of the relationship between pelvic incidence and bony contribution to lumbar lordosis in children

Baker

2021

Clinical Anatomy

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“…Sacropelvic morphology variations seem to play a role in predisposing indi-viduals to an increased risk of developing spondylolysis through increased biomechanical stress [6,7]. Analyses of sacropelvic parameters between individuals with and without spondylolysis have shown the sacrum's morphometry and its relationship with the pelvis can vary considerably [7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…Although various sacropelvic parameters have been studied for their association with the development or presence of spondylolysis, few studies have considered multiple parameters simultaneously [6][7][8][9][10][11]14]. Moreover, the main determinants of or risk factors for spondylolysis concerning sacropelvic morphometry need to be identified.…”

Section: Introductionmentioning

confidence: 99%

Sacropelvic Parameters and L5 Spondylolysis: Computed Tomography Analysis

Baker

2022

Asian Spine J

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This study aims to determine the association of sagittal sacropelvic parameters with L5 spondylolysis. Overview of Literature: The association of increased pelvic incidence (PI) and decreased sacral table angle (STA) with spondylolysis has been reported, but no study has simultaneously analyzed multiple sacropelvic variables to compare their association. Methods: In this study, computed tomography scans obtained to assess major trauma in patients aged >16 years were analyzed. Scans meeting one of the following criteria were excluded: abnormal anatomy, previous spine or hip/pelvis surgery, or spinal pathology, including deformity, infection, tumor, or trauma. sacral anatomic orientation (SAO), PI, pelvic thickness (PTH), femoro-sacral posterior angle (FSPA), STA, and sacral kyphosis (SK) were measured. Results: Overall, 202 scans were analyzed: 25 with L5 spondylolysis and 177 normal. Among the groups, a significant difference was observed in SAO (43.3° vs. 51.6°), PI (61.7° vs. 49.8°), STA (95.4° vs. 101.8°), and SK (31.0° vs. 23.7°). Based on the logistic regression analysis, only PI (odds ratio [OR], 1.074; 95% CI, 1.026-1.124) and STA (OR, 0.822; 95% CI, 0.734-0.920) remained significant predictors for the presence of spondylolysis. In the spondylolysis group, PI correlated significantly with PTH (r=−0.589), FSPA (r=0.880), and SK (r=0.576), whereas in the normal group, PI correlated significantly with FSPA (r=0.781) and SK (r=0.728). Conclusions: By simultaneously assessing multiple sacropelvic parameters, we associated increasing PI with L5 spondylolysis. Decreasing STA, which likely represents a chronic remodeling secondary to spondylolysis, was also associated with increased risk. Back pain in an adolescent or young adult with high PI or low STA should raise suspicion of a possible occult spondylolysis.

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“…The sacral table angle (STA) and sacral kyphosis (SK) are widely regarded as fixed anatomic parameters in healthy adults. 7 , 8 , 9 , 10 These parameters could be easily observed on X‐ray images. The STA is relatively widely described in studies of spondylolysis/spondylolisthesis; however, it does not receive enough attention in normal spinopelvic morphology.…”

Section: Introductionmentioning

confidence: 97%

“…The sacrum is an integrated part of the pelvis and constitutes the undistorted part of the spinal curve, as well as the sacral morphology plays an essential role in sagittal balance. The sacral table angle (STA) and sacral kyphosis (SK) are widely regarded as fixed anatomic parameters in healthy adults 7‐10 . These parameters could be easily observed on X‐ray images.…”

Section: Introductionmentioning

confidence: 99%

Sacral anatomical parameters varies in different Roussouly sagittal shapes as well as their relations to lumbopelvic parameters

et al. 2021

JOR Spine

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Purpose To study the normal variations in sacral anatomical parameters in different Roussouly sagittal shapes and the association between sacral anatomical parameters and lumbopelvic parameters in healthy adults. Methods A cohort of 239 healthy volunteers between 18 and 45 years old was enrolled in this study. A full‐spine, standing X‐ray was taken for each volunteer. The following parameters were measured: the sacral table angle (STA), sacral kyphosis (SK), pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), lumbar lordosis (LL), and lumbar lordosis apex (LLA). Two hundred and thirty‐nine volunteers were classified into five groups according to the Roussouly classification. The differences in sagittal parameters among the five groups were evaluated by one‐way analysis of variance. The correlations between lumbopelvic parameters and sacral anatomical parameters were analyzed, and simple linear regressions were simultaneously constructed. Result The sacral anatomical parameters vary in different Roussouly sagittal shapes. Correlation analysis revealed that the significant correlations between sacral anatomical parameters and lumbopelvic parameters. The STA correlated with PI (r = −.690, P <.001), PT (r = −.216, P = .001), SS (r = −.631, P <.001), LL (r = −.491, P <.001), and LLA (r = 0.515, P <.001). The corresponding regression formulae were as follows: PI = −0.991*STA + 143(R2 = .476), LL = 0.870*STA‐135.1(R2 = .242), and LLA = 0.039*STA −0.087(R2 = .265). The SK correlated with PI (r = .471, P <.001), PT (r = .445, P = .001), SS (r = .533, P <.001), LL (r = .438, P <.001), and the LLA (r = −.265, P <.001). The corresponding regression formulae were as follows: PI = 0.38*SK + 27.22(R2 = .396), LL = −0.35*SK − 35.99(R2 = .192), and LLA = −0.01*SK + 4.25(R2 = .201). Conclusions The sacral anatomical parameters vary in different Roussouly sagittal shapes and have strong correlations with lumbopelvic parameters, which demonstrates that the specific lumbar shape can be affected by the sacral morphology. Moreover, the predictive models of lumbopelvic parameters based on SK and STA have been provided, which demonstrates constant sacral anatomical parameters could serve as good supplementary index of PI to predict ideal lumbar parameters.

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The Association of Sacral Table Angle Measurements With Spondylolytic and Spondylolisthetic Defects at the Lumbosacral Articulation: A Radiographic Analysis

Cited by 10 publications

References 35 publications

Computed tomography study of the relationship between pelvic incidence and bony contribution to lumbar lordosis in children

Computed tomography study of the relationship between pelvic incidence and bony contribution to lumbar lordosis in children

Sacropelvic Parameters and L5 Spondylolysis: Computed Tomography Analysis

Sacral anatomical parameters varies in different Roussouly sagittal shapes as well as their relations to lumbopelvic parameters

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