Lumbar Scoliosis in Postmenopausal Women: Prevalence and Relationship with Bone Density, Age, and Body Mass Index

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dc.contributor.authorUrrutia, Julio
dc.contributor.authorDíaz Ledezma, Claudio
dc.contributor.authorEspinosa, Julio
dc.contributor.authorBerven, Sigurd H.
dc.date.accessioned2016-12-14T23:26:56Z
dc.date.available2016-12-14T23:26:56Z
dc.date.issued2011
dc.description.abstractStudy Design. Cross-sectional study. Objective. The aim of this study was to investigate the prevalence of lumbar scoliosis in postmenopausal women aged 50 years and older, and to determine the association of adult lumbar scoliosis with age, osteoporosis, and body mass index (BMI). Summary of Background Data. Adult scoliosis prevalence has not been clearly determined. In addition, limited data are available on the correlation of adult scoliosis with age, bone mineral density, and BMI. Methods. We studied 380 postmenopausal women aged 50 years and older, who were evaluated with dual-energy radiograph absorptiometry (DXA) scan images. The lumbar curvature magnitude in the coronal plane was measured in DXA images with Cobb's method. Scoliosis was defined by the presence of a curvature 10 degrees or larger. Age and T-score in the lumbar spine and in both femoral necks were recorded, and BMI was calculated. Correlation analysis among the studied variables was performed, as well as a linear regression analysis to determine the effect of femoral neck T-score, spine T-score, age, and BMI as independent predictors of the Cobb angle in the lumbar spine. Results. The prevalence of lumbar scoliosis was 12.9% (49 cases); 43 cases (11.3%) had lumbar curves 10 degrees or more but less than 20 degrees, and six cases (1.6%) had lumbar curves more than 20 degrees. Age and BMI were independent predictors of the Cobb angle; the femoral neck T-score and the lumbar T-score were not independent predictors of the Cobb angle. Conclusion. We found a 12.9% prevalence of lumbar scoliosis in postmenopausal women aged 50 years and older, most of them with mild curves. Age and BMI are independent predictors of lumbar scoliosis. Bone mineral density (BMD) is not an independent predictor of the magnitude of the curve.
dc.identifier.citationSpine, 2011, vol. 36, n° 9, p. 737-740
dc.identifier.urihttp://hdl.handle.net/11447/893
dc.identifier.urihttp://dx.doi.org/10.1097/BRS.0b013e3181db7456
dc.language.isoen_US
dc.subjectAdult scoliosis
dc.subjectScoliosis prevalence
dc.subjectOsteoporosis
dc.subjectAging spine
dc.titleLumbar Scoliosis in Postmenopausal Women: Prevalence and Relationship with Bone Density, Age, and Body Mass Index
dc.typeArtículo

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