天津医药

天津医药 ›› 2017, Vol. 45 ›› Issue (7): 715-718.doi: 10.11958/20170606

• 临床研究 • 上一篇    下一篇

天津市 221 例青少年双能 X 线骨密度分析

孙晓雷，马信龙，薛惠予，杨倩，刘学庆，陆静   

  1. 天津市天津医院，天津市骨科研究所 （邮编 300211）
  • 收稿日期:2017-05-27 修回日期:2017-06-13 出版日期:2017-07-15 发布日期:2017-08-08
  • 通讯作者: 马信龙 E-mail:xlspine@163.com
  • 基金资助:
    国家自然科学基金资助项目 （31600769）

Study of the bone mineral density detected by dual-energy X-ray absorptiometry in 221 adolescents of Tianjin

SUN Xiao-lei,MA Xin-long,XUE Hui-yu,YANG Qian,LIU Xue-qing,LU Jing   

  1. Tianjin Hospital, Tianjin Orthopedics Institution, Tianjin 300211, China
  • Received:2017-05-27 Revised:2017-06-13 Published:2017-07-15 Online:2017-08-08
  • Contact: MA Xin-long E-mail:xlspine@163.com

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摘要： 目的 研究天津市 12~19 岁青少年腰椎和股骨近端骨密度 （BMD） 与性别、 年龄及体质指数 （BMI） 的关系， 为了解青少年骨骼发育的健康状况提供初步的参考依据。方法 利用双能 X 线骨密度仪（DXA）对天津医院门诊 221 例 12~19 岁青少年进行腰椎（L1~4）、 股骨颈和全髋 BMD 的检测， 以 Z 值作为临床诊断标准。同时测量身高、 体质量并计算 BMI， 比较青少年腰椎、 股骨颈和全髋 BMD 在不同性别、 年龄及 BMI 之间的差异。结果 男女间腰椎BMD 差异无统计学意义（P＞0.05）， 而男性股骨颈和全髋 BMD 显著高于女性（P＜0.01）； 腰椎、 股骨颈及全髋 BMD总体随年龄的增长而逐渐增加； BMI 越大的青少年其腰椎、 股骨颈及全髋的 BMD 也相应增加。结论 青少年 BMD与性别、 年龄及 BMI 存在密切的关系， 应重视青少年营养健康和体质指标的健康水平。

关键词: 骨密度, 骨质疏松, 青少年, 体质指数, Z 值

Abstract: Objective To study the relationship between lumbar and proximal femoral bone mineral density (BMD) with gender, age and body mass index (BMI) in adolescents ranged from 12 to 19 years of age in Tianjin city, and provide preliminary reference to understand the bone health status of adolescent in the city. Methods The BMD values of lumbar spine (L1-L4), femoral neck and total hip were detected by the dual-energy X-ray absorptiometry (DXA) in 221 adolescents from Tianjin Hospital, and the Z value was used for clinical diagnosis standard. Simultaneously the height and weight of adolescents were measured, and BMI was calculated. The differences of BMD values in the lumbar, femoral neck and total hip were compared between different age, gender and BMI groups. Results The BMD values of femoral neck and total hip were significantly higher in males than those in females (P < 0.01). The BMD values of lumbar spine, femoral neck and total hip were gradually increased with age. The BMD was correspondingly increased in adolescents with higher BMI in the lumbar spine, femoral neck and total hip. Conclusion There is a close relationship between BMD with age, gender and BMI in adolescents. We should pay more attention to the nutrition health and the level of BMI in adolescents.

Key words: bone density, osteoporosis, adolescent, body mass index, Z value

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