成人最大腰椎前凸预测公式的建立及评价

Establishment and evaluation of the maximum lumbar lordosis prediction formula in adults

中文关键词:  腰椎前凸  预测公式  交界椎体

英文关键词:Lumbar lordosis  Predictive formula  Transitional vertebra

中文摘要:

  【摘要】 目的：建立一个新的预测成人最大腰椎前凸的公式，评价其可靠性和有效性。方法：收集311例健康成人的一般资料与站立位脊柱全长侧位X线片，在X线片上测量最大腰椎前凸（maximal lumbar lordosis，maxLL）、最大胸椎后凸（maximal thoracic kyphosis，maxTK）、骶骨倾斜角（sacral slope，SS）、骨盆倾斜角（pelvic tilt，PT），骨盆入射角（pelvic incidence，PI）。应用Pearson相关分析在其中220例研究对象中分析maxLL与maxTK、SS、PT和PI之间的相关关系，利用与maxLL相关的变量进行多元回归分析，建立腰椎前凸预测公式；利用建立的公式对其余91例研究对象的maxLL进行预测，并与实际测量的maxLL进行比较，验证预测公式的可靠性与有效性。结果：maxLL与maxTK（r=0.564，P<0.001）、SS（r=0.783，P<0.001）、PT（r=-0.155，P=0.021）和PI（r=0.483，P<0.001）有关。多元回归分析表明maxLL与maxTK、PI显著相关性（P<0.001），建立预测公式为：maxLL=0.6×maxTK+0.5×PI+3（R2=0.55）。用公式预测的maxLL为49.32°±7.06°，实际测量的maxLL为48.70°±9.46°，差异无显著性（P=0.408）。结论：maxTK与PI是maxLL的主要影响因素，建立的预测公式预测成人最大腰椎前凸具有良好的可靠性与有效性。

英文摘要:

  【Abstract】 Objectives: To establish a new formula for predicting the maximum lumbar lordosis in adults and evaluate its reliability and validity. Methods: The general data and standing full-length lateral X-ray radiographs of 311 healthy adults were collected. The maximal lumbar lordosis (maxLL), maximal thoracic kyphosis(maxTK), sacral slope (SS), pelvic tilt (PT), pelvic incidence (PI) were measured on X-ray radiographs. Pearson correlation analysis was performed to analyze the correlation between maxLL and maxTK, SS, PT, and PI in 220 subjects. The prediction formula of maximum lumbar lordosis was established by multiple regression analysis of variables associated with maxLL. The maxLL of the remaining 91 subjects was predicted by the established formula and compared with the actual measured maxLL to verify the reliability and validity of the prediction formula. Results: MaxLL was correlated with maxTK(r=0.564, P<0.001), SS(r=0.783, P<0.001), PT(r=-0.155, P=0.021) and PI(r=0.483, P<0.001). Multiple regression analysis showed that maxLL was significantly correlated with maxTK and PI(P<0.001), and the established prediction formula was as follows: maxLL=0.6×maxTK+0.5×PI+3(R2=0.55). The maxLL predicted by the formula was 49.32°±7.06°, and the actually measured maxLL was 48.7°±9.46°, with no significant difference(P=0.408). Conclusions: MaxTK and PI are the primary contributors to maxLL. The established prediction formula has good reliability and validity in predicting the maximum lumbar lordosis in adults.