Study of bone growth estimation considering skeletal maturation in adolescent girls

在骨骼健康管理中，最重要的问题是如何度过骨量高峰期，即对骨骼健康进行适当的自我管理。本研究探讨了考虑骨骼成熟的骨生长估计以及如何指导青少年骨骼健康。2000 ~ 2001年开展了以下调查工作；调查等物理特性的身体身高和体重,身体质量指数,测量第二掌骨皮质骨矿物质密度的数字图像处理方法(浸渍法),骨龄评估使用x射线胶片通过相同的方法,和跟骨骨松质骨的质量是衡量使用ALOKA-AOS100超声波,OSI(骨骼sono-assessment指数),TI(传输指数)和SOS(声速)用作骨质量指数,饮食调查3天，健康状况问卷，月经状况及月经来潮年限等。因此，我们评估了影响青春期女孩骨密度（DIP法和超声法）和骨骼成熟的因素。在本研究中，为了明确骨生长估计的相关因素，我们采用单回归分析方法分析了骨密度与各种因素（体格、月经初潮后的年数、骨龄）的相关性。超声检测的OSI、TI与体重、BMI呈正相关，与骨龄呈正相关。这些数据表明，DIP法和超声法的BMD结果的影响因素不同。这些结果表明，当考虑到骨骼成熟度与适当的体格、月经初潮后的年份相关时，超声方法对评估青春期女孩的骨密度是有用的。

In the management of bone health, the most important issue is how the period until peak bone mass is spent, that is, appropriate self management for bone health.This study examined for bone growth estimation considering skeletal maturation and how to guidance on bone health in adolescents.In 2000〜2001, the following investigations were carried out ; investigation of physical characteristics such as body height and body weight, body mass index, measurement of cortical bone mineral density of the second metacarpal bone by the digital image processing method (DIP method), evaluation of bone age using X-ray film by the same method, and cancellous bone mass of calcaneal bone was measured by ultrasound using the ALOKA-AOS100, and OSI(osteo sono-assessment index), TI(Transmission index) and SOS(speed of sound) was used as an index of bone mass, dietary survey for 3 days, a health status questionnaire, menstrual status and years since menarche and so on. Therefore, we evaluated factors affecting BMDs (DIP method and Ultrasound method) and skeletal maturation in adolescent girls.In this study, to clarify bone growth estimation-associated factors, the correlation between BMDs and various factors (physique, years after menarche, bone age) was analyzed by single regression analysis. OSI and TI by the ultrasound method showed higher positive correlation with body weight and BMI than with bone age. These data indicated that factors affecting BMD findings by the DIP method and OSI, TI by the ultrasound method differed. These results suggest that bone growth estimation by the ultrasound method is useful in evaluating BMD in adolescent girls, when considering skeletal maturation in relation to appropriate physique, years since menarche.