Journal
GLOBAL SPINE JOURNAL
Volume 6, Issue 2, Pages 169-175Publisher
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0035-1558652
Keywords
sacropelvic parameters; lumbar lordosis; thoracic kyphosis; asymptomatic adults
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Study DesignCross-sectional study. ObjectiveSacropelvic parameters in various spine and hip disorders have been published in various studies. We aimed to study the normal sacropelvic parameters and curvatures of the spine and their correlation in asymptomatic Indian adults in relation to variations in sex and age. MethodsThe study included 101 asymptomatic adults (50 men and 51 women with an average age of 47.16 and 48.59 years, respectively). For each subject, the thoracic kyphosis (TK), lumbar lordosis (LL), pelvic incidence (PI), pelvic tilt (PT), and sacral slope (SS) were measured from standing lateral radiographs. After stratification of the group by sex and age with a cutoff of 50 years, descriptive, correlation, and regression analysis were performed using SPSS software. ResultsThe average PI, SS, PT, LL, and TK values were 55.48 (5.31), 35.99 (+/- 7.53), 17.97 (+/- 7.16), 48.84 (+/- 9.82), and 32.55 (+/- 10.92), respectively. No statistically significant difference was observed in these values with regards to sex and age<50 years and>50 years but the pelvic incidence was found to be higher in women. A positive correlation between the PI and SS and a negative correlation between the SS and PT was observed. A positive correlation between the TK and LL was found in subjects>50 years. Simple and multiple regression analyses were also performed for different groups. ConclusionThe current study is the first of asymptomatic Indian adults and provides invaluable information to the clinicians about the normal range of sacropelvic and spinopelvic parameters, which is useful to plan spinal deformity corrections and to evaluate pathologic conditions associated with abnormal angular values.
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