The shape and mobility of the thoracic spine in asymptomatic adults – A systematic review of in vivo studies

Fang, Pan; Firouzabadi, Ali; Reitmaier, Sandra; Zander, Thomas; Schmidt, Hendrik

doi:10.1016/j.jbiomech.2018.07.041

Cited by 21 publications

(17 citation statements)

References 78 publications

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“…The patients’ standing postures were not standardized in erect whole spine lateral view, which resulted in interpretation and reporting bias. Sagittal radiographic parameters were easily influenced by the patients’ positioning and motion [32, 33]. In addition, evaluating the axial vertebral rotation with the Nash-Moe method may not reflect the true axial rotation, since the classification only divides the rotations into four categories [22].…”

Section: Discussionmentioning

confidence: 99%

The correlations between the anchor density and the curve correction of adolescent idiopathic scoliosis surgery

Yeh

Niu

Chen

et al. 2019

BMC Musculoskelet Disord

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BackgroundThe optimal anchor density in adolescent idiopathic scoliosis (AIS) surgery to achieve good curve correction remains unclear. The purpose of the study is to analyze the correlations between three-dimensional curve correction and anchor density in the pedicle screw-based posterior fusion of AIS.MethodsOne hundred and twenty-seven AIS patients receiving primary posterior fusion with pedicle screw instrumentation were retrospectively reviewed. Anchor density (AD) was defined as the screws number per fused spinal segment. The correlations between three-dimensional curve correction radiographic parameters and anchor density were analyzed with subgroup analysis based on different curve types, curve magnitudes, and curve flexibilities. The differences of curve correction parameters between the low-density (AD ≤1.4), middle-density (1.4 < AD ≤1.7) and high-density (AD > 1.7) groups were also calculated. Independent t-test, analysis of variance (ANOVA), and Pearson’s correlation coefficient were used for statistical analysis.ResultsThere were no correlations between the anchor density and the coronal curve correction or apical vertebral rotation (AVR) correction. In the sagittal plane, mild positive correlations existed between anchor density and thoracic kyphosis correction in all patients (r = 0.27, p = 0.002). Subgroup analysis revealed similar mild positive correlations in Lenke 1 (r = 0.31, p = 0.02), Lenke 1–3 (r = 0.27, p = 0.01), small curves (40°-60°, r = 0.38, p < 0.001), and flexible curves (flexibility > 40%, r = 0.34, p = 0.01).There were no differences between low-density (mean 1.31), middle-density (mean 1.55), and high-density (mean 1.83) in terms of coronal or axial curve correction parameters. Low-density group has longer fused level (mean difference 2.14, p = 0.001) and smaller thoracic kyphosis correction (mean difference 9.25°, p = 0.004) than high-density group.ConclusionIn our study, the anchor density was not related to coronal or axial curve corrections. Mild positive correlations with anchor density were found in thoracic kyphosis correction, especially in patients with smaller and flexible curves. Low anchor density with longer fusion level achieves similar curve corrections with middle or high anchor density in adolescent idiopathic scoliosis surgery.

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Section: Discussionmentioning

confidence: 99%

The correlations between the anchor density and the curve correction of adolescent idiopathic scoliosis surgery

Yeh

Niu

Chen

et al. 2019

BMC Musculoskelet Disord

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“…Considering that minimum JSW <2.0 mm at baseline is a predictor of hip OA progression [35] and minimum JSW <2.5 mm is associated with future hip joint replacement [36], a mean minimum JSW value of 1.95 mm in phenotype 2 is associated with the risk of future hip OA progression. Furthermore, although spinal mobility generally decreases with age [37], phenotype 2 is characterized by reduced thoracic and thoracolumbar spine mobility even after adjustment for age.…”

Section: Discussionmentioning

confidence: 99%

Clinical phenotypes based on clinical prognostic factors in patients with secondary hip osteoarthritis: preliminary findings from a prospective cohort study

et al. 2020

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Recently, several clinical prognostic factors for hip osteoarthritis (OA) progression such as spinal malalignment, reduced spinal mobility, and excessive daily cumulative hip loading have been identified. This study aimed to identify clinical phenotypes based on clinical prognostic factors in patients with secondary hip OA using data from prospective cohort studies and to define the clinical features of each phenotype. Methods Fifty patients participated. Two-step cluster analysis was performed to identify the phenotypes using the following potential prognostic factors for hip OA progression: spinal inclination in standing, thoracolumbar spine mobility, daily cumulative hip moment, and minimum joint space width (JSW) at baseline. Comprehensive basic and clinical features (age, body mass index, hip pain, Harris hip score, JSW, radiographic hip morphology, hip impairments, spinal alignment and mobility, and gait-related variables) and ratio of progressors in 12 months were compared among the phenotypes using bootstrap method (unadjusted and adjusted for age). Results Three phenotypes were identified and each phenotype was characterized as follows (P < 0.05): phenotype 1 (30%), relatively young age and higher daily cumulative hip loading; phenotype 2 (42.0%), relatively older age, reduced JSW, and less spinal mobility; and phenotype 3 (28.0%), changed thoracic spine alignment and less spinal (especially in the thoracic spine) mobility. The ratio of progressors among the phenotypes was not statistically significantly different. These characteristics remained after adjustment for age. Conclusion Three phenotypes with similar progression risk were identified. This finding will help in designing treatment tailored to each phenotype for hip OA progression prevention.

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“…Analyzing the correlation of ODI, VAS, or CB with the extent of the instrumentation, we found that the level of the UIV did not affect any of the outcomes of interest. Given the relative limited mobility of the thoracic spine [ 33 ], these data are not surprising. It is however striking that the moderate correlation between ODI and LIV at the one-year follow-up was further reduced at the two-year follow-up.…”

Section: Discussionmentioning

confidence: 99%

Perioperative Predictive Factors for Positive Outcomes in Spine Fusion for Adult Deformity Correction

Baroncini

Migliorini

Langella

et al. 2021

JCM

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Purpose: Identifying perioperative factors that may influence the outcomes of long spine fusion for the treatment of adult deformity is key for tailored surgical planning and targeted informed consent. The aim of this study was to analyze the association between demographic or perioperative factors and clinical outcomes 2 years after long spine fusion for the treatment of adult deformity. Methods: This study is a multivariate analysis of retrospectively collected data. All patients who underwent long fusion of the lumbar spine for adult spinal deformity (January 2016–June 2019) were included. The outcomes of interest were the Oswestry disability index (ODI), visual analogic scale (VAS) preoperatively and at 1 and 2 years’ follow up, age, body mass index, American Society of Anaesthesiologists (ASA) score, upper and lowest instrumented vertebrae (UIV and LIV, respectively), length of surgery, estimated blood loss, and length of hospital stay. Results: Data from 192 patients were available. The ODI at 2 years correlated weakly to moderately with age (r = 0.4), BMI (r = 0.2), ASA (r = 0.3), and LIV (r = 0.2), and strongly with preoperative ODI (r = 0.6). The leg VAS at 2 years moderately correlated with age (r = 0.3) and BMI (r = 0.3). Conclusion: ODI and VAS at 2 years’ follow-up had no to little association to preoperative age, health status, LIV, or other peroperative data, but showed a strong correlation with preoperative ODI and pain level.

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The shape and mobility of the thoracic spine in asymptomatic adults – A systematic review of in vivo studies

Cited by 21 publications

References 78 publications

The correlations between the anchor density and the curve correction of adolescent idiopathic scoliosis surgery

The correlations between the anchor density and the curve correction of adolescent idiopathic scoliosis surgery

Clinical phenotypes based on clinical prognostic factors in patients with secondary hip osteoarthritis: preliminary findings from a prospective cohort study

Perioperative Predictive Factors for Positive Outcomes in Spine Fusion for Adult Deformity Correction

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