Related Experiment Video
Updated: Jun 24, 2025
Cell-based Assay Protocol for the Prognostic Prediction of Idiopathic Scoliosis Using Cellular Dielectric Spectroscopy
Published on: October 16, 2013
The Evolution of Curve Patterns in Adolescent Idiopathic Scoliosis During Chêneau Brace Treatment
Hao Hou1, Dong Guo, Haonan Liu
1Department of Orthopaedics, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.
Study Design/Setting:
This retrospective study analyzed bracing outcomes in patients with adolescent idiopathic scoliosis (AIS), focusing on curve pattern changes and brace efficacy.
Objective:
To analyze the effectiveness of the Chêneau brace across different curve patterns and to evaluate the tendencies in curve evolution during treatment.
Background:
AIS presents diverse curve patterns, each responding differently to bracing. Understanding these variations is crucial for optimizing treatment strategies.
Patients And Methods:
The study included 177 patients with AIS treated with Chêneau orthoses, categorized based on curve patterns as per the main curve and modified Lenke (mLenke) classifications. We compared patients according to curve patterns and assessed changes in curve magnitude and pattern before and after treatment.
Results:
Over an average follow-up of 28.1 ± 10.7 months, the primary curve magnitude decreased from 28.8 ± 6.6° to 25.9 ± 10.5°. Significant reductions were observed in mLenke V and VI patients ( P < 0.05). Patients with main lumbar curves showed better initial in-brace correction and curve control compared with those with main thoracic curves ( P < 0.05). In single-curve patterns, binary logistic regression indicated that mLenke V patients demonstrated higher rates of curve control compared with mLenke I patients ( P < 0.05). No significant differences were found in double-curve patterns between mLenke III and VI ( P > 0.05). At the final follow-up, thoracolumbar/lumbar curves improved significantly in mLenke III and VI patients ( P < 0.05), whereas thoracic curves did not ( P > 0.05). Furthermore, at the last follow-up, the proportions of mLenke I, II, and IV increased, whereas mLenke III, V, and VI decreased.
Conclusions:
Bracing outcomes were more favorable in patients with main lumbar curves than those with main thoracic curves. However, no significant differences were found in patients with double-curve patterns. Thoracic curves exhibited a higher progression risk compared with thoracolumbar/lumbar curves within the same curve pattern. During bracing, a tendency for primary curves to shift proximally was noted.
Level Of Evidence:
Level III.
More Related Videos
06:28Biomechanical Changes Related to Low Back Pain: An Innovative Tool for Movement Pattern Assessment and Treatment Evaluation in Rehabilitation
Published on: December 13, 2024
07:44Evaluation of Patients' Posture and Gait Profile After Lumbar Fusion Surgery by Video Rasterstereography and Treadmill Gait Analysis
Published on: March 23, 2019
Related Concept Videos
01:14Bending of Curved Members - Strain Analysis
The important part of bending analysis for such a member...
01:16Vertebral Column: Regions and Curvature
Regions of the Vertebral Column
In an adult, the spine is subdivided into five regions: the cervical, the thoracic, the lumbar, the sacral, and the coccygeal region. The spine initially develops as a series of 33 vertebrae; after 20 years of age, the nine bones in the sacral region, five sacral, and four coccygeal bones fuse to form...
01:12General Case of Eccentric Axial Loading
Consider a member subjected to equal and opposite forces that are applied along a line that does not coincide with the member's neutral axis. In unsymmetrical...
01:20Normal Strain under Axial Loading
01:16Eccentric Axial Loading in a Plane of Symmetry
01:17Curve Equations