• Zhonghua yi xue za zhi · Apr 2013

    [Relationship between variations of severe isthmic spondylolisthesis spino-pelvic parameters and clinical symptoms].

    • Guo-hua Lü, Zheng-guang Wang, Bing Wang, Bang-liang Yin, Ze-min Ma, Wei-dong Liu, Lei Li, Lei Kuang, and Fan Yang.
    • Department of Spine Surgery, Second Xiangya Hospital, Central South University, Changsha 410018, China.
    • Zhonghua Yi Xue Za Zhi. 2013 Apr 16;93(15):1133-7.

    ObjectiveTo explore the relationship between variations of severe isthmic spondylolisthesis spino-pelvic parameters and clinical symptoms.MethodsA retrospective study of spino-pelvic parameters was conducted for 45 patients with L5 severe isthmic spondylolisthesis. Their spino-pelvic parameters were analyzed on preoperative full spinal radiography: grade of spondylolisthesis, pelvic incidence (PI), sacral slope (SS), pelvic tilt (PT), lumbar lordosis (LL), thoracic kyphosis (TK), SFHD, SFVD, SC7D and T9 tilting angle. According to the Oswestry score, the patients with low back pain were divided into light and severe groups. T-tests were used to compare their parameters. The analyses of multiple factor correlation, linear regression and stepwise regression were used to examine the associations between all parameters and Oswestry score.ResultsGrade of spondylolisthesis, PT, LL, T9 tilting angle, SFHD, SC7D, PT/SS, SFHD/SFVD, LL/TK were significantly greater and SS, SFVD were significantly smaller for patients with severe low back pain versus light low back pain (P < 0.05). PI or TK had no statistically significant difference between two groups. Multiple factor correlation, linear regression and stepwise regression: Grade of spondylolisthesis, PT, SC7D, LL and SFHD had significant positive correlations with Oswestry score. Degree of positive correlation: Grade of spondylolisthesis > SC7D > PT > LL > SFHD. And PI, TK or T9 tilting angle had no significant correlation with Oswestry score. SS and SFVD had significant negative correlations with Oswestry score. Degree of negative correlation: SS > SFVD. PT/SS, SFHD/SFVD and LL/TK had significant positive correlation with Oswestry score. Degree of positive correlation: PT/SS> SFHD/SFVD > LL/TK.ConclusionClinical symptoms of severe isthmic spondylolisthesis have significant positive correlations with grade of spondylolisthesis, PT, SC7D, LL, SFHD, PT/SS, SFHD/SFVD, LL/TK and significant negative correlations with SS and SFVD. Low back pain symptom has no significant correlation with PI, TK or T9 tilting angle.

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