Department of Orthopaedics and Traumatology, The University of Hong Kong, Pokfulam, Hong Kong SAR, China.
Manipal Spine Care Center, Manipal Hospital, Bangalore, India.
Spine (Phila Pa 1976). 2018 Jul 15;43(14):971-976. doi: 10.1097/BRS.0000000000002503.
Retrospective radiographic study.
To assess whether flexibility as revealed by the supine radiograph, predicts in-brace curve correction.
Currently there is no consensus regarding a standard method to assess curve flexibility and immediate brace effectiveness in treating adolescent idiopathic scoliosis (AIS). Brace fabrication methods may be variable but ideally it should achieve maximal curve correction. Curve flexibility governs the degree of curve correction in-brace and hence dynamic radiographs are commonly performed prior to brace fitting.
This was a radiographic analysis of AIS patients treated with underarm bracing. Correlation of pre-brace, supine, and immediate in-brace Cobb angles was performed. Relationship with possible contributing factors including age, sex, body height, weight, age at menarche and Risser staging was studied. Major and minor curves were compared independently for correlation but the regression model was constructed based on the major curve only.
From 105 patients with mean age of 12.2 ± 1.2 years at brace fitting, supine Cobb angle measurement has significant correlation with immediate in-brace Cobb angle (r = 0.740). Univariate analyses showed no significant relationship with age, weight, height, date of menarche, Risser stage or pre-brace Cobb angle. Our regression model (in-brace Cobb angle = 0.809 × supine Cobb angle) had good fit of the data.
Supine radiograph predictably determines the flexibility of the scoliotic curve to brace treatment. It can be used as a guideline to determine the amount of correction achievable with brace-wear. The effectiveness of the brace is dependent on the inherent flexibility of the curve rather than its size or type.
回顾性影像学研究。
评估仰卧位 X 线片显示的柔韧性是否可预测支具内的曲线矫正。
目前，对于评估青少年特发性脊柱侧凸（AIS）患者的曲线柔韧性和支具即时矫正效果，尚无共识。支具制作方法可能存在差异，但理想情况下应实现最大的曲线矫正。曲线柔韧性决定了支具内的曲线矫正程度，因此在支具适配前通常会进行动态 X 线检查。
这是一项使用腋下支具治疗 AIS 患者的影像学分析。对支具前、仰卧位和即刻支具内 Cobb 角进行了相关性分析。研究了与可能的影响因素（包括年龄、性别、身高、体重、初潮年龄和 Risser 分期）的关系。主要和次要曲线分别进行了相关性比较，但回归模型是基于主要曲线构建的。
从 105 名平均年龄为 12.2±1.2 岁的支具适配患者中，仰卧位 Cobb 角测量与即刻支具内 Cobb 角有显著相关性（r=0.740）。单因素分析显示，年龄、体重、身高、初潮日期、Risser 分期或支具前 Cobb 角与即刻支具内 Cobb 角均无显著关系。我们的回归模型（支具内 Cobb 角=0.809×仰卧位 Cobb 角）对数据有很好的拟合。
仰卧位 X 线片可预测地确定脊柱侧凸曲线对支具治疗的柔韧性。它可作为指导，确定支具佩戴时可实现的矫正量。支具的有效性取决于曲线的固有柔韧性，而不是其大小或类型。
3。
