中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (33): 8577-8582.doi: 10.12307/2026.315

• 骨组织构建 bone tissue construction •    下一篇

女性髋部骨密度及几何结构与年龄和体质量指数的关系

高海燕,郑洪银,肖  翊,黄际远   

  1. 四川省医学科学院·四川省人民医院(电子科技大学附属医院)核医学科,四川省成都市   610072
  • 收稿日期:2025-04-03 修回日期:2025-06-14 出版日期:2026-11-28 发布日期:2026-06-08
  • 通讯作者: 黄际远,硕士,主任医师,四川省医学科学院·四川省人民医院(电子科技大学附属医院)核医学科,四川省成都市 610072
  • 作者简介:高海燕,女,1982年生,山西省长子县人,汉族,2009年西南医科大学毕业,硕士,主治医师,主要从事核医学影像诊断及功能检查方面的研究。
  • 基金资助:
    四川省医学科学院·四川省人民医院临床研究及转化基金(2017LY01),项目负责人:黄际远;四川省自然科学基金(2024NSFSC0667),项目负责人:高海燕

Relationship of hip bone mineral density and geometry with age and body mass index in women

Gao Haiyan, Zheng Hongyin, Xiao Yi, Huang Jiyuan   

  1. Department of Nuclear Medicine, Sichuan Academy of Medical Sciences · Sichuan Provincial People's Hospital (Affiliated Hospital of University of Electronic Science and Technology of China), Chengdu 610072, Sichuan Province, China
  • Received:2025-04-03 Revised:2025-06-14 Online:2026-11-28 Published:2026-06-08
  • Contact: Huang Jiyuan, MS, Chief physician, Department of Nuclear Medicine, Sichuan Academy of Medical Sciences · Sichuan Provincial People's Hospital (Affiliated Hospital of University of Electronic Science and Technology of China), Chengdu 610072, Sichuan Province, China
  • About author:Gao Haiyan, MS, Attending physician, Department of Nuclear Medicine, Sichuan Academy of Medical Sciences · Sichuan Provincial People’s Hospital (Affiliated Hospital of University of Electronic Science and Technology of China), Chengdu 610072, Sichuan Province, China
  • Supported by:
    Clinical Research and Translational Fund of Sichuan Academy of Medical Sciences · Sichuan Provincial People's Hospital, No. 2017LY01 (to HJY); Sichuan Natural Science Foundation, No. 2024NSFSC0667 (to GHY)

摘要:



文题释义:
髋部几何结构:双能X射线骨密度仪(DXA)不仅可以测量骨密度,还能通过分析髋部几何结构参数,为骨骼健康评估提供多维信息,辅助评估骨折风险。常用几何结构参数包括髋轴长度(股骨头至股骨干外侧距离,过长增加骨折风险)、颈干角[股骨颈与骨干夹角,角度异常(如增大)可能提示骨骼结构脆弱、骨折风险增加]、股骨颈宽度、股骨颈横截面积(与抗压能力相关)、横断面转动惯量、髋强度指数等。这些几何结构参数与骨密度相结合可全面评估骨骼强度,为临床提供结构-功能双重评估依据,助力精准防治骨质疏松及骨折。
体质量指数:通常与骨密度增加呈正相关,其保护作用在女性中更明显,因机械负荷刺激骨形成,但过度肥胖可能因脂肪代谢异常削弱此效应。体质量指数也与髋部几何结构如髋轴长度、股骨颈干角、横断面转动惯量、横截面面积、髋强度指数等有密切关联性,提示女性随增龄骨丢失同时伴髋部几何结构的重建,几何参数发生相应改变。临床需结合体质量指数、骨密度及髋部几何参数综合评估骨折风险,尤其关注肥胖或消瘦人群的结构异常,指导个体化干预。

背景:双能X射线骨密度测量仪测量的骨密度是诊断骨质疏松的金标准,髋部是骨质疏松及骨折重要部位,骨密度仅能反映骨强度的70%,髋部几何力学参数也对髋部骨折有重要影响。
目的:通过成都地区女性大样本数据,探讨女性受试者髋部骨密度和几何结构参数的变化及用于骨折风险预测的价值,为骨质疏松及髋部骨折防治提供参考依据。
方法:采用美国GE LUNAR公司Prodigy advance双能X射线骨密度测量仪测定20岁以上女性37 682例,年龄20-104.3岁,测量部位包括左股骨颈、大转子、Wards区、股骨干及全髋骨密度;并采用双能X射线骨密度测量仪的髋部结构分析软件测量股骨近端几何结构参数,包括髋轴长度、横断面转动惯量、髋部强度指数、颈干角、横截面面积等,探讨年龄、体质量指数与股骨近端骨密度及几何结构之间的关系。
结果与结论:①女性受试者股骨颈、大转子、全髋骨密度在30-39岁达到峰值,后随增龄逐渐降低;髋部髋轴长度、横断面转动惯量、横截面面积、髋强度指数在30-39岁达到峰值,随增龄逐渐降低;②随体质量指数增加,女性受试者髋部各部位骨密度均逐渐增加,骨质疏松检出率逐渐下降;③随体质量指数增加,髋部髋轴长度、股骨颈横断面转动惯量、股骨颈横截面积逐渐升高(P < 0.001),髋部强度指数逐渐降低(P < 0.001);④髋部骨密度与身高、体质量、体质量指数呈正相关(r=0.095-0.425),与年龄呈负相关(r=-0.445至-0.623);髋轴长度、横断面转动惯量、横截面面积与身高、体质量、体质量指数、髋部骨密度呈正相关(r=0.059-0.444),与年龄呈负相关(r=-0.055至-0.555);⑤此次研究数据为成都地区髋部骨密度和几何结构参数提供了参考数据,女性随增龄伴髋部骨密度丢失和几何结构参数变化,50岁以后更为明显;女性低体质量指数人群更应注意骨质疏松及骨折风险防治。
https://orcid.org/0000-0001-5017-5624 (高海燕) 


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

关键词: 双能X射线骨密度测量仪, 骨密度, 股骨近端, 几何结构, 体质量指数, 骨质疏松症, 年龄

Abstract: BACKGROUND: Bone mineral density measured by dual-energy X-ray absorptiometry is the gold standard for diagnosing osteoporosis. The hip is an important site for osteoporosis and fractures. Bone mineral density can only reflect 70% of bone strength. Hip geometric mechanical parameters also have an important impact on hip fractures.
OBJECTIVE: To observe the changes in bone mineral density and geometry of the proximal femur of female subjects and their value in predicting fracture risk through a large sample of female data in Chengdu, and to provide a reference for the prevention and treatment of osteoporosis and hip fractures. 
METHODS: Bone mineral densities of 37 682 women aged 20 to 104.3 years were measured using Prodigy Advance dual-energy X-ray absorptiometry (GE LUNAR, USA). Measurement sites included the left femoral neck, greater trochanter, Wards area, femoral shaft, and total hip. The hip structure analysis software of the dual-energy X-ray absorptiometry was used to measure the geometric structure parameters of the proximal femur, including hip axis length, cross-sectional moment of inertia, femur strength index, neck-shaft angle, and cross-sectional area, to explore the relationship between age, body mass index and proximal femoral bone mineral density and geometry.  
RESULTS AND CONCLUSION: (1) The bone mineral density of the femoral neck, greater trochanter, and total hip in women peaked at ages 30 to 39 and gradually decreased with increasing age. Hip axis length, cross-sectional moment of inertia, cross-sectional area, and femur strength index peaked at ages 30 to 39 and gradually decreased with age. (2) With increasing body mass index, bone mineral density at hip skeletal sites gradually increased, and the detection rate of osteoporosis gradually decreased. (3) With increasing body mass index, hip axis length, cross-sectional moment of inertia, and cross-sectional area of the femoral neck gradually increased (P < 0.001), and the femur strength index gradually decreased (P < 0.001). (4) Hip bone mineral density showed a positive correlation with height, body mass, and body mass index (r=0.095-0.425) and a negative correlation with age (r=-0.445 to -0.623). The hip axis length, cross-sectional moment of inertia, and cross-sectional area were positively correlated with height, body mass, body mass index, and hip bone mineral density (r=0.059-0.444), and negatively correlated with age (r=-0.055 to -0.555). (5) This data provided reference values for hip bone mineral density and geometric parameters in the Chengdu region. There was a loss of bone mineral density and changes geometry in women with increasing age, which become more pronounced after age 50. Women with low body mass index should be particularly cautious regarding the prevention of osteoporosis and fracture risk.

Key words: dual-energy X-ray absorptiometry, bone mineral density, proximal femur, geometry, body mass index, osteoporosis, age

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