天津9～14岁女童颈椎骨骨龄测量法的建立与分析

Foundation and analysis of method on the estimating cervical vertebral bone age of the femal children in Tianjin

目的:初步建立天津9～14岁女童颈椎骨龄的量化计算方法,为正畸临床诊断和制定治疗计划提供依据。方法:通过对天津地区135名9～14岁女童的X线头颅侧位定位片的第三(C3)、第四(C4)颈椎椎体进行测量分析,观察颈椎体随年龄变化的形态变化规律。结果:C3、C4椎体形态随年龄增长呈规律性变化,根据测量椎体深度和高度比值,建立了天津女童的颈椎骨龄多元回归方程。结论:在常规头颅侧位片上,应用该方法能够迅速得出颈椎骨龄参考值,为临床提供参考。

Objective： To establish a method of estimating cervical vertebral maturation for Tianjin female children and to provide valid reference index for assessing skeletal age while making diagnosis and treatment plan. Methods： 135 Tianjin female children from 9-14 years of age were investigated by lateral cephalometric radiographs. The growth status arid the relationship of 43, 44 cervical vertebra were measured. Results：The shapes of 43, 44 cervical vertebra bodies were varied regularly with the age and a regression formula to obtain cervical bone age was determined by the ratios of vertebral body length and height. Conclusion：Using this formula it may be possible to evaluate cervical bone age on normal cephalometric radiographs.