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| WU Hailong,GUO Erfei,ZHANG Shuai.The characteristics of sagittal balance parameter in degerative lumbar scoliosis and its effect to lumbar scoliosis[J].Chinese Journal of Spine and Spinal Cord,2019,(1):16-20. |
| The characteristics of sagittal balance parameter in degerative lumbar scoliosis and its effect to lumbar scoliosis |
| Received:January 04, 2018 Revised:October 10, 2018 |
| English Keywords:Balance of sagittal plane Lumbar scoliosis Intervertebral disc degeneration The quality of life |
| Fund:河北省医学科学研究重点课题指令计划（20150161）；河北省科技计划自筹经费项目（152777173） |
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| English Abstract: |
| 【Abstract】 Objectives: To analyze the characteristics of sagittal balance parameter in degenerative lumbar scoliosis and its effects on lumbar scoliosis, and to explore its characteristics and roles in degenerative lumbar scoliosis. Methods: The imaging data of 90 patients who diagnosed primary degenerative lumbar scoliosis in our hospital from March 2012 to March 2017 were retrospectively reviewed as the case group. The imaging data of 55 patients diagnosed as lumbar degenerative diseases excluding lumbar scoliosis were selected as the control group. The two groups were matched with same time period, same age period and same sex ratio and all cases were performed on whole spine X-ray. Oswestry disability index(ODI), visual analog scale(VAS) and SRS-22 questionnaire were completed by the patients. Through software J, the following sagittal balance parameters were measured: sagittal vertical axis(SVA), thoracic kyphosis(TK), lumbar lordosis(LL), pelvic incidence(PI), sacral slope(SS), pelvic tilt(PT), T1 spino-pelvic angle(TPA) and L1 spino-pelvic angle(LPA). The sagittal balance parameters were compared in two groups, and the lumbar Cobb angle and the sagittal balance parameter were analyzed. Results: By using paired-t test, the overall balance parameter of sagittal plane(SVA, TK, PI, PT, TPA) between the case and control group had no significant difference(P＞0.05), while the local balance parameter of sagittal plane(SS, LL, LPA) between two groups had significant difference(P＜0.05). ODI, VAS and SRS-22 between two groups had significant difference(P＜0.05). Correlation analysis showed that ODI, VAS and SRS-22 had significant correlation(-1＜r＜1, P＜0.05) with the local balance parameter of sagittal plane(SS, LL, LPA), and had no significant correlation (P＞0.05) with the overall balance parameters of sagittal plane(SVA, TK, PI, PT, TPA). The lumbar Cobb angle was negatively correlated with LL and LPA(-1＜r＜0, P＜0.05) and positively correlated with SS(0＜r＜1, P＜0.05). Further regression analysis showed that there was a linear regression relationship of Cobb angle with SS, LL and LPA (F=417.331, P<0.01), and its regression equation was Cobb angle=19.526-8.223×LL＋3.727×SS＋1.618×LPA. Conclusions: For the degenerrative lumbar scoliosis, the LL and SS are more serious than other sagittal balance parameters and show the decrease of LL and the increase of SS which are worse with the progress of lumbar scoliosis. These changes affect the quality of life of patients. |
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