Search

Your search keyword '"Yanming Li"' showing total 2 results
Start Over Author "Yanming Li" Topic adolescent idiopathic scoliosis
2 results on '"Yanming Li"'

1. Analysis of correlation between regional implant density and the correction rate in treatment of Lenke 1A and 1B adolescent idiopathic scoliosis with pedicle screws

Author

Xiaodong Zhu, Yanming Li, Ming Li, and Changwei Yang

Subjects
Male, Adolescent, Observational Study, Idiopathic scoliosis, Pedicle screw instrumentation, Correlation, coronal plane, correction rate, X-ray, 03 medical and health sciences, 0302 clinical medicine, Cobb angle, Pedicle Screws, Medicine, Humans, angle loss, Pedicle screw, Child, Retrospective Studies, Orthodontics, instrumentation, 030222 orthopedics, business.industry, structural region, Regional Implant, General Medicine, implant density, pedicle screw, non-structural region, Treatment Outcome, Scoliosis, Coronal plane, adolescent idiopathic scoliosis, Female, Implant, business, 030217 neurology & neurosurgery, Follow-Up Studies, Research Article
Abstract

A retrospective study. The optimal implant density in patients with Lenke type 1 adolescent idiopathic scoliosis (AIS) is undefined, and there is no study reporting the correlation between the partitional implant density and the correction outcome. To determine whether the implant density in structural and nonstructural regions would affect the coronal correction outcome of Lenke 1A and 1B AIS. Preoperative general data and postoperative follow-up data of Lenke 1A and 1B AIS patients who received posterior fusion with the pedicle screw system were analyzed. Correlations between the implant density in structural and nonstructural regions and the correction rate of coronal Cobb angle, as well as between the correction rate and loss of the coronal correction angle during a 2-year follow-up period were analyzed. According to the implant density, the patients were classified into 2 groups: structural region group (including A1 and A2), and nonstructural region group (including B1 and B2). Differences in related parameters between the 2 groups were compared statistically. Except for the mean implant density, there was no statistical difference in the other parameters between group A1 and A2. In group B1 and B2, the correction rate of the main thoracic (MT) curve was 63.0% and 71.6% (P = .022), and the loss of the correction angle was 2.1° and 4.2°, respectively (P

Published
2018

2. Adding-on Phenomenon After Surgery in Lenke Type 1, 2 Adolescent Idiopathic Scoliosis: Is it Predictable?

Author

Changwei Yang, Yanming Li, Mingyuan Yang, Yunfei Zhao, Xiaodong Zhu, Ming Li, Gabriel Liu, Yang, Changwei, Li, Yanming, Yang, Mingyuan, Zhao, Yunfei, Zhu, Xiaodong, Li, Ming, and Liu, Gabriel

Subjects
*ADOLESCENT idiopathic scoliosis, *SPINAL surgery, *OPERATIVE surgery, *HEALTH risk assessment, *LUMBAR curve, *THERAPEUTICS
Abstract

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 4 × DnfS-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. [ABSTRACT FROM AUTHOR]

Published
2016
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results