摘要
目的:利用X线头颅定位侧位片上颈椎的增龄性指标并将其定量化,建立第三、四颈椎的定量化增龄指标与骨龄之间的相关回归方程,为正畸临床上判定患者的骨龄及成熟度提供理论依据。方法:华中地区青少年研究样本158例(男80例,女78例)。根据颈椎体与骨龄相关的增龄性变化,提出第三和第四颈椎体相关的十二个指标,对纳入样本的X线头颅定位侧位片颈椎影像进行定量化测量,并用逐步多元回归分析检验增龄性定量指标与骨龄的相关性。结果:统计学显示骨龄和颈椎定量化指标呈高度相关,同时具有性别差异。获得不同性别相关线性回归方程,男性:Age=-0.528+4.534PH/AP3+1.463AH/H4+5.364AH/AP3-1.894AH/PH4+3.345AH/H3;女性:Age=1.679+5.503AH/AP3+3.432AH/H4+3.528H/PH3-3.278PH/AP4+2.502AH/H3(其中男性r2=0.96;女性r2=0.97)。结论:华中地区青少年人群颈椎发育上存在性别差异,提示在进行骨龄判断时应考虑性别因素。利用定量的颈椎增龄性指标判定骨龄精确性高,具有统计学意义。
Objective： To assess estimation of skeletal age based on the measurement of cervical vertebrae development following the quantitive method and to establish new equations between skeletal age and quantitive measurement of cervical vertebrae.Materials and Method：The sample consisted of 158 cephalometric radiographs from young Chinese in central China. And the subjects skeletal age was decided by the Hand-wrist X-rays. Statistical analysis was performed using the T-test between sex and age. Regression analysis was performed to obtain regression formulas for skeletal age calculation with the quantitive measurement of cervical vertebrae. Result： Statistically significant differences （P 〈0.05） in quantitive measurement of cervical vertebrae between males and females. And it showed a strong correlation between skeletal age and the quantitive measurement of cervical vertebrae. New equations （male： Age = -0.528＋4.534 PH / AP3＋1.463 AH / H4＋ 5.364 AH / AP3-1.894 AH / PH4＋3.345 AH / H3 （r2=0.96） ;female： Age =1.679＋5.503 AH / AP3＋3.432 AH / H4＋3.528 H / PH3-3.278 PH / AP4＋2.502 AH / H3 （r2=0.97）） were derived for estimating skeletal age. Conclusion： These results suggest that quantitive measurement of cervical vertebral bone age reflects skeletal maturity because it approximates bone age, which is considered to be the most reliable method for evaluating skeletal maturation.
出处
《临床口腔医学杂志》
2011年第5期271-273,共3页
Journal of Clinical Stomatology
关键词
骨龄
颈椎
定量分析
skeletal age
cervical vertebrae
quantitative analysis
