Kitagawa Takanori, Iizuka Yoichi, Kobayashi Hiroki, Mieda Tokue, Tsunoda Daisuke, Yamamoto Atsushi, Tajika Tsuyoshi, Iizuka Haku, Takagishi Kenji
Department of Orthopedic Surgery, Gunma University Graduate School of Medicine, Maebashi, Japan.
Asian Spine J. 2017 Dec;11(6):975-980. doi: 10.4184/asj.2017.11.6.975. Epub 2017 Dec 7.
Cross-sectional study.
The purpose of this study was to evaluate the correlation between pelvic tilt (PT) and the sacro-femoral-pubic (SFP) angle, which is easier to identify than PT, in middle-aged and elderly Asian subjects from the general population.
Measuring PT is important in the diagnosis and treatment of adult spinal deformity. However, identifying femoral heads, which are necessary to determine PT, using sagittal radiographs is often difficult.
Standing coronal and sagittal pelvic radiographs of individuals aged more than 50 years were taken during a local medical examination. The subjects were divided into female, male, and total groups at the time of evaluation. Linear regression analysis was performed to investigate the relationship between PT and the SFP angle, which were obtained from the X-rays.
The present study included 291 subjects. There were no statistically significant differences between the left and right SFP angles, and there was gender difference regarding the SFP angle. However, a gender difference was observed regarding PT. The correlation between PT and the SFP angle was substantiated in each group. Pearson's correlation coefficients between PT and the SFP angle in the total, female, and male groups were 0.696, 0.853, and 0.619, respectively. In the linear regression analysis, PT was calculated as follows: PT=60.1-0.77×(SFP angle) in the total group, PT=62.8-0.80×(SFP angle) in the female group, and PT=51.5-0.64×(SFP angle) in the male group.
A significant correlation between PT and the SFP angle was observed in middle-aged and elderly Asian subjects from the general population.
横断面研究。
本研究旨在评估骨盆倾斜度（PT）与骶股耻骨（SFP）角之间的相关性，在普通人群的中老年亚洲受试者中，SFP角比PT更容易识别。
测量PT在成人脊柱畸形的诊断和治疗中很重要。然而，使用矢状位X线片确定PT所必需的股骨头往往难以识别。
在当地体检期间，对年龄超过50岁的个体进行站立位冠状位和矢状位骨盆X线摄影。在评估时，将受试者分为女性组、男性组和总体组。进行线性回归分析以研究从X线片中获得的PT与SFP角之间的关系。
本研究纳入291名受试者。左右SFP角之间无统计学显著差异，且SFP角存在性别差异。然而，PT存在性别差异。每组中PT与SFP角之间的相关性得到证实。总体组、女性组和男性组中PT与SFP角之间的Pearson相关系数分别为0.696、0.853和0.619。在线性回归分析中，总体组中PT的计算如下：PT = 60.1 - 0.77×（SFP角），女性组中PT = 62.8 - 0.80×（SFP角），男性组中PT = 51.5 - 0.64×（SFP角）。
在普通人群的中老年亚洲受试者中，观察到PT与SFP角之间存在显著相关性。
