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首页> 外文期刊>Spine >Adding-on Phenomenon After Surgery in Lenke Type 1, 2 Adolescent Idiopathic Scoliosis: Is it Predictable?
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Adding-on Phenomenon After Surgery in Lenke Type 1, 2 Adolescent Idiopathic Scoliosis: Is it Predictable?

机译：Lenke 1、2型青少年特发性脊柱侧弯手术后的附加现象：是否可以预测？

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Study Design.A retrospective study.Objective.The aim of this study was to detect risk factors for Adding-on after posterior correction surgery in patients with Lenke 1 or 2 AIS, and to explore whether Adding-on Index could be used to predict Adding-on effectively.Summary of Background Data.Adding-on phenomenon is a common complication in Lenke 1 or 2 AIS patients after correction surgery. However, whether it can be predicted after surgery remains unknown.Methods..Lenke 1 or 2 AIS patients receiving correction surgery in our center from January 2009 to July 2013 were analyzed. Antero-posterior and lateral films were evaluated before surgery, at 2 weeks' and 2 years' follow-up. Patients were divided into 2 groups according to whether Adding-on occurred at the 2 years' follow-up. Risk factors of Adding-on were analyzed, and Adding-on Index was proposed and verified.Results.Sixteen patients (16.3%) suffered from distal Adding-on at 2-year follow-up. Several parameters were found to be significantly different between 2 groups, including Risser's sign, postoperative Cobb angle of main thoracic, postoperative Cobb angle of main thoracic curve at 2-year follow-up, preoperative and postoperative Cobb angle of lumbar curve, postoperative Cobb angle of lumbar curve at 2-year follow-up, LIV-EV, LIV-SV, LIV-CSVL, LAV-CSVL, LAV-LIV, DnfS, and postoperative TJK. No significant differences in SRS-22 scores were observed. Binary logistic regression analysis showed that DnfS and postoperative residual Cobb angle of lumbar curve were primary factors for occurrence of Adding-on. According to the regression equation, Adding-on Index was defined as 4xDnfS-postoperative lumbar curves Cobb angle. On the basis of ROC curve, if Adding-on Index was more than 12, the occurrence rate of Adding-on was 88%. On the contrary, the rate of no Adding-on phenomenon was 80%.Conclusion.DnfS and posterior Cobb angle of lumbar curve were 2 important factors for Adding-on in Lenke 1, 2 AIS patients. Adding-on Index can be used to predict the occurrence of Adding-on effectively.Level of Evidence: 4
机译：研究设计是一项回顾性研究，目的是研究Lenke 1或2 AIS患者后路矫正手术后添加药物的危险因素，并探讨是否可以使用添加药物指数来预测添加背景资料的摘要。在Lenke 1或2 AIS矫正手术后，附加现象是常见的并发症。方法：分析2009年1月至2013年7月在我中心接受矫正手术的Lenke 1或2例AIS患者。在手术前，2周和2年的随访中评估前后位和外侧位片。根据在2年的随访中是否发生附加治疗，将患者分为2组。结果：在两年的随访中，有16例患者（占16.3％）患有远端附件的危险因素，并提出并验证了附件索引。两组之间的一些参数存在显着差异，包括Risser征，术后2年随访时主胸曲的Cobb角，术后主胸曲的Cobb角，腰弯的术前和术后Cobb角，术后Cobb角2年随访时的腰弯，LIV-EV，LIV-SV，LIV-CSVL，LAV-CSVL，LAV-LIV，DnfS和术后TJK的变化。没有观察到SRS-22分数的显着差异。二元logistic回归分析表明，DnfS和术后残余腰椎Cobb角是发生Add-on的主要因素。根据回归方程，附加指数定义为4xDnfS-术后腰弯Cobb角。根据ROC曲线，如果添加指数大于12，则添加发生率为88％。相反，无添加现象的发生率为80％。结论。DnfS和腰椎后弯Cobb角是Lenke 1、2 AIS患者添加的两个重要因素。附加指数可用于有效预测附加的发生。证据等级：4

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