الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Degenerative scoliosis is a three-dimensional deformity seen in the aging spine. Important parameters in the assessment of balance of the scoliotic spine include spino-pelvic parameters such as the PI, PT, and SS as well as the coronal Cobb angle, and LL. In order to decrease the energy associated with maintaining upright posture, sagittal balance is necessary. Significant sagittal deviation or imbalance is associated with poor functional scores across multiple domains. This study was intended to evaluate the comparison between demographic and spino-pelvic parameters of multi-level DLS with or without scoliosis, all demographic results were comparable between the two groups. Although, several studies have reported that multi-level DLS with or without scoliosis is attributable to age-related changes. In our study, the age distribution imbalance between the two groups was reduced, and no significant differences in between the two groups. Regarding the sex in the two groups, there were no statistically significant differences. In the present study, SS angle was significantly lower in the multi-level DLS with scoliosis than in Multi-level DLS without scoliosis. PT are important spino-pelvic parameters that reflect the severity of adult spinal deformity. In the study, PT angle was significantly higher in the multi-level DLS with scoliosis than in multi-level DLS without scoliosis. This work revealed that the morphological parameter PI in multi-level DLS with scoliosis is more than multi-level DLS without scoliosis. There was no statistically significant correlation between the age and spino-pelvic parameters and cobb´s angle in the two groups. There wasn´t significant correlation by increasing the age and the parameters. There was a significant correlation between the sex and PT in patients with multi-level DLS without scoliosis, as they showed higher PT in females relative to males and there was no significant correlation between sex and other parameters in both groups Manual workers in scoliotic group show smaller SS and higher PT than in non-scoliotic group, which give a significant correlation between the occupation and these spino-pelvic parameters. This may be explained by the method of daily activity which may have a role in degenerative scoliosis if associated with multi-level DLS. This highlights the importance of a thorough discussion of the risks of deformity correction weighed against the anticipated benefits with patient’s during clinical consultation based on the spino-pelvic parameters. Measurement of these spino-pelvic parameters can assist in monitoring progression of disease in patients and ultimately allow physicians to provide better treatment and care.