Coronal deformity angular ratio may serve as a valuable parameter to predict in-brace correction in patients with adolescent idiopathic scoliosis

Lang, Chuandong; Huang, Zifang; Zou, Qihua; Sui, Wenyuan; Deng, Yong; Yang, Junlin

doi:10.1016/j.spinee.2018.12.002

“…IBC is one of the main predictors for the outcome of brace treatment for IS [6]. It was reported that imaging parameters, such as CA, AVR, were associated with IBC [8,10]. The same finding was observed in our study.…”

Section: Discussionsupporting

confidence: 90%

“…Given the significance of IBC, some studies have been performed to find related imaging parameters to predict the IBC [7]. Self-parameters of IS, such as primary Cobb angle and coronal deformity angular ratio, was found to correlate with IBC [8]. However, little information is available about the effect of pelvic rotation parameters (PRP) on IBC.…”

Section: Introductionmentioning

confidence: 99%

Pelvic rotation parameters related to in-brace correction in patients with idiopathic scoliosis

Li

¹

,

Zhang

²

2020

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Background To identify the pelvic parameters affecting in-brace correction (IBC) in patients with idiopathic scoliosis (IS). Methods Patients with IS receiving Chêneau brace treatment in our scoliosis center from January 2019 to November 2019 were retrospectively analyzed. Pelvic rotation parameters, including pelvic incidence (PI), sacral slope (SS), pelvic tilt (PT), L/R ratio, were collected. Other radiographic data, such as Risser sign, coronal and sagittal balance, curve location, kyphosis, lordosis of each patient were also recorded to analyze their correlations with IBC. Correlation analyses were performed to identify the classified variables influencing IBC. The principal component analysis was used to extract common factors of radiographic parameters to eliminate interaction effects. The linear regression equation was established using principal components, the variables influencing IBC were identified. Results A cohort of 44 patients with IS (36 girls and 8 boys) were included in the present study. The mean IBC was 49.87% (range, 3%–100%). IBC of lumbar IS was negatively correlated with apical rotate factor (ARF, B = –0.385), mainly consisted of pelvic coronal plane rotation (PCPR, 0.449), Cobb angle (CA, 0.575), apical vertebral rotation (AVR, 0.918), and pelvic rotate factor (PRF, B = –0.387), mainly consisted of PT (0.861), PI (0.728), PCPR (–0.570). The regression equation of lumbar IS had statistical significance (F = 6.500, P = 0.005, R2 = 0.317), whereas statistically significance was not found in the regression equation of thoracic IS (F = 2.913, P = 0.106). The remaining parameters were not related to IBC. Conclusions For lumbar IS, ARF and PRF have negative effects on IBC, coronal and sagittal rotation of the pelvis is related to IBC.

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“…IBC is one of the main predictors for the outcome of brace treatment for IS [6]. It was reported that Imaging parameters, such as CA, AVR, were associated with IBC [8,10]. The same nding was observed in our study.…”

Section: Discussionsupporting

confidence: 88%

Pelvic Rotation Parameters Related to In-Brace Correction in Patients with Idiopathic Scoliosis

Li

¹

,

Miao²,

Zhang

³

2020

Preprint

View full text Add to dashboard Cite

BACKGROUND: To identify the pelvic parameters affecting in-brace correction (IBC) in patients with idiopathic scoliosis (IS). METHODS: Patients with IS receiving Chêneau brace treatment in our scoliosis center from January 2019 to November 2019 were retrospectively analyzed. Pelvic rotation parameters, including Pelvic incidence (PI), Sacral slope (SS), pelvic tilt (PT), L/R ratio, were collected. Other radiographic data, such as Risser sign, coronal and sagittal balance, curve location, kyphosis, lordosis of each patient was also recorded to analyze their correlations with IBC. Correlation analyses were performed to identify the classified variables influencing IBC. The principal component analysis was used to extract common factors of radiographic parameters to eliminate interaction effects. The linear regression equation was established using principal components, the variables influencing IBC were identified.RESULTS: A cohort of 44 patients with IS (36 girls and 8 boys) were included in the present study. The mean IBC was 49.87% (range, 3%∽100%). IBC of lumbar IS was negatively correlated with apical rotate factor (ARF, B=-0.385), mainly consisted of pelvic coronal plane rotation (PCPR, 0.449), cobb angle (CA,0.575), apical vertebral rotation (AVR, 0.918), and pelvic rotate factor (PRF, B=-0.387), mainly consisted of PT (0.861), PI (0.728), PCPR (-0.570). The regression equation of lumbar IS had statistical significance (F=6.500, P=0.005，R2=0.317). Whereas statistically significance was not found in the regression equation of thoracic IS (F=2.913, P=0.106). The remaining parameters were not related to IBC.CONCLUSIONS: For lumbar IS, ARF and PRF have negative effects on IBC, Coronal and sagittal rotation of the pelvis is related to IBC.

show abstract

“…IBC is one of the main predictors for the outcome of brace treatment for IS [6]. It was reported that Imaging parameters, such as CA, AVR, were associated with IBC [8,10]. The same nding was observed in our study.…”

Section: Discussionsupporting

confidence: 88%

“…Given the signi cance of IBC, some studies have been performed to nd related imaging parameters to predict the IBC [7]. Self-parameters of IS, such as primary Cobb angle and coronal deformity angular ratio, was found to correlate with IBC [8].…”

Section: Introductionmentioning

confidence: 99%

Pelvic Rotation Parametersrelated to in-brace Correction in Patients With Idiopathic Scoliosis

Li

¹

,

Miao²,

Zhang

³

2020

Preprint

0

View full text Add to dashboard Cite

BACKGROUND: To identify the pelvic parameters affecting in-brace correction (IBC) in patients with idiopathic scoliosis (IS). METHODS: Patients with IS receiving Chêneau brace treatment in our scoliosis center from January 2019 to November 2019 were retrospectively analyzed. Pelvic rotation parameters, including Pelvic incidence (PI), Sacral slope (SS), pelvic tilt (PT), L/R ratio, were collected. Other radiographic data, such as Risser sign, coronal and sagittal balance, curve location, kyphosis, lordosis of each patient was also recorded to analyze their correlations with IBC. Correlation analyses were performed to identify the classified variables influencing IBC. The principal component analysis was used to extract common factors of radiographic parameters to eliminate interaction effects. The linear regression equation was established using principal components, the variables influencing IBC were identified.RESULTS: A cohort of 44 patients with IS (36 girls and 8 boys) were included in the present study. The mean IBC was 49.87% (range, 3%∽100%). IBC of lumbar IS was negatively correlated with apical rotate factor (ARF, B=-0.385), mainly consisted of pelvic coronal plane rotation (PCPR, 0.449), cobb angle (CA,0.575), apical vertebral rotation (AVR, 0.918), and pelvic rotate factor (PRF, B=-0.387), mainly consisted of PT (0.861), PI (0.728), PCPR (-0.570). The regression equation of lumbar IS had statistical significance (F=6.500, P=0.005，R2=0.317). Whereas statistically significance was not found in the regression equation of thoracic IS (F=2.913, P=0.106). The remaining parameters were not related to IBC.CONCLUSIONS: For lumbar IS, ARF and PRF have negative effects on IBC, Coronal and sagittal rotation of the pelvis is related to IBC.

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Coronal deformity angular ratio may serve as a valuable parameter to predict in-brace correction in patients with adolescent idiopathic scoliosis

Cited by 14 publications

References 35 publications

Pelvic rotation parameters related to in-brace correction in patients with idiopathic scoliosis

Pelvic rotation parameters related to in-brace correction in patients with idiopathic scoliosis

Pelvic Rotation Parameters Related to In-Brace Correction in Patients with Idiopathic Scoliosis

Pelvic Rotation Parametersrelated to in-brace Correction in Patients With Idiopathic Scoliosis

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