青少年特发性脊柱侧凸柔韧性影响因素分析及仰卧侧屈角度的预测

目的分析青少年特发性脊柱侧凸柔韧性影响因素,探讨预测指标,初步建立仰卧侧屈位Cobb角角度的预测模型。方法通过对青少年特发性脊柱侧凸150例患者（包括胸椎侧凸和胸腰段/腰椎侧凸共216个）的站立位脊柱全长正位X线片和仰卧侧屈位X线片资料进行回顾性研究,用仰卧侧屈位X线片矫正率作为柔韧性指标,与站立位冠状面Cobb角、年龄、性别、Risser征、是否主侧凸和侧凸位置6个指标进行Pearson或Spearman相关分析及多元线性回归,筛选相关因素;采用同样方法 ,分析6个指标与仰卧侧屈Cobb角的关系。结果站立位冠状面Cobb角（P〈0.01）和侧凸位置（P〈0.01）与柔韧度存在明显线性回归关系。站立位冠状面Cobb角（P〈0.01）、侧凸位置（P〈0.01）和是否主侧凸（P〈0.01）与仰卧侧屈Cobb角存在明显的线性回归关系。对青少年特发性脊柱侧凸,站立位冠状面Cobb角每增加10°,柔韧度约减少8%,胸椎侧凸柔韧性平均比胸腰段/腰椎侧凸低10%。站立位冠状面Cobb角〉45°的胸椎次侧凸和〉50°的胸腰段/腰椎次侧凸,成为结构性侧凸几率较大。结论站立位冠状面Cobb角和侧凸位置是显著影响青少年特发性脊柱侧凸柔韧度的因素,实验探讨了1种预测仰卧侧屈Cobb角角度的简单方法 ,解决了临床实际问题。

Influencing factors of the curve flexibility in adolescent idiopathic scoliosis and prediction method of Cobb's angle measured on supine lateral-bending roentgenograph

Objective To analysis the influencing factors of the curve flexibility in idiopathic scoliosis and find out the prediction method of Cobb's angle measured on supine lateral-bending roentgenographs. Methods Standing position spinal full-length posteroanterior-roentgenographs and supine lateral-bending roentgenographs of 150 patients suffered idiopathic scoliosis with 216 curvatures (included thoracic,thoracolumbar,lumbar) were analyzed retrospectively. Correction rate on supine lateral-bending roentgenograph...