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| WANG Hui,MA Lei,DING Wenyuan.Characteristics of sagittal spinal and pelvic parameters in degenerative lumbar scoliosis and it′s correlation analysis[J].Chinese Journal of Spine and Spinal Cord,2014,(8):699-703. |
| Characteristics of sagittal spinal and pelvic parameters in degenerative lumbar scoliosis and it′s correlation analysis |
| Received:July 01, 2014 Revised:July 25, 2014 |
| English Keywords:Degenerative lumbar scoliosis Sagittal spinal and pelvic balance Compensatory effect |
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| English Abstract: |
| 【Abstract】 Objectives: To study the characteristics of sagittal spinal and pelvic parameters in degenerative lumbar scoliosis and correlations among the parameters. Methods: Eighty-six cases with degenerative lumbar scoliosis were divided into mild scoliosis group(Cobb angle ＜34°) and severe scoliosis group(Cobb angle ≥34°), and forty cases of healthy participants were selected as control group. Sagittal parameters of thoracic kyphosis(TK), lumbar lordosis(LL), sagittal vertical axis(SVA), pelvic incidence(PI), sacral slope(SS), pelvic tilt(PT) were measured and compared among three groups. Pearson correlation test was used to explore the correlations among parameters. Results: No difference in PI(F=0.915, Ｐ=0.403) was noted among three groups, but significant differences existed in LL, SVA, PT, SS. Analysis of variance(ANOVA) test showed that (1)LL in severe scoliosis group was smaller than that in mild scoliosis group, LL in mild scoliosis group was smaller than that in control group(Ｐ<0.05); (2)TK in severe scoliosis group and mild scoliosis group was smaller than that in control group(Ｐ<0.05), no difference between severe scoliosis group and mild scoliosis group existed(Ｐ>0.05); (3)SVA in severe scoliosis group and mild scoliosis group was bigger than that in control group(Ｐ<0.05), no difference between severe scoliosis group and mild scoliosis group existed(Ｐ>0.05); (4)PT in severe scoliosis group was bigger than that in mild scoliosis group, LL in mild scoliosis group was bigger than that in control group(Ｐ<0.05); (5)SS in severe scoliosis group was smaller than that in mild scoliosis group, LL in mild scoliosis group was smaller than that in control group(Ｐ<0.05). Correlation analysis showed that in control group, PI was positively correlated to PT, SS, TK and LL, SS was positively correlated to LL, TK was positively correlated to LL(Ｐ<0.05); in mild scoliosis group, PI was positively correlated to PT, SS and LL, SS was positively correlated to LL, LL was negatively correlated to SVA and Cobb angle(Ｐ<0.05); in severe scoliosis group, PI was positively correlated to PT, SS and LL, SS was positively correlated to LL, SS was negatively correlated to Cobb angle, LL was negatively correlated to SVA and Cobb angle(Ｐ<0.05). Conclusions: The degenerative lumbar scoliosis patients demonstrate a significant decrease of thoracic kyphosis, lumbar lordosis, sacral slope and increase of SVA, pelvic tilt without change in pelvic incidence. |
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