{"title":"舟状骨和桡骨远端骨密度的年龄相关变化:定量计算机断层扫描研究","authors":"Ryutaro Iwasaki , Yusuke Matsuura , Takahiro Yamazaki , Kaoru Kitsukawa , Aya Kanazuka , Seiji Ohtori","doi":"10.1016/j.bone.2025.117612","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Scaphoid fractures predominantly occur in young males, while distal radius fractures occur in elderly females, despite similar injury mechanisms. We hypothesized that age-related bone mineral density (BMD) changes differ between these bones, explaining their distinct fracture patterns. This study compared age-related BMD changes between the scaphoid and distal radius using quantitative computed tomography (qCT).</div></div><div><h3>Methods</h3><div>We analyzed 167 cases (110 males, 57 females; mean age 45.2 ± 18.1 years) who underwent qCT including forearm and carpal bones. Exclusion criteria included fractures, arthritis, and implants. BMD was measured separately for cortical and cancellous bone in both the scaphoid and distal radius using phantom-corrected Hounsfield values. Correlations between age and BMD were evaluated using Pearson correlation coefficients.</div></div><div><h3>Results</h3><div>The distal radius showed significant negative correlation with age in overall BMD (<em>r</em> = −0.44) and cancellous BMD (<em>r</em> = −0.40), while the scaphoid showed no significant correlation. Females demonstrated significantly stronger negative correlations than males in both bones. Age-related BMD decline occurred predominantly in cancellous bone. The radius/scaphoid BMD ratio decreased with age (<em>r</em> = −0.51), indicating relatively greater BMD decline in the radius.</div></div><div><h3>Conclusion</h3><div>The distal radius exhibits stronger age-related BMD decline than the scaphoid, particularly in cancellous bone. This differential aging pattern may explain why scaphoid fractures predominate in young individuals while distal radius fractures are more common in the elderly.</div></div>","PeriodicalId":9301,"journal":{"name":"Bone","volume":"200 ","pages":"Article 117612"},"PeriodicalIF":3.6000,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Age-related changes in bone mineral density of the scaphoid and distal radius: A quantitative computed tomography study\",\"authors\":\"Ryutaro Iwasaki , Yusuke Matsuura , Takahiro Yamazaki , Kaoru Kitsukawa , Aya Kanazuka , Seiji Ohtori\",\"doi\":\"10.1016/j.bone.2025.117612\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Background</h3><div>Scaphoid fractures predominantly occur in young males, while distal radius fractures occur in elderly females, despite similar injury mechanisms. We hypothesized that age-related bone mineral density (BMD) changes differ between these bones, explaining their distinct fracture patterns. This study compared age-related BMD changes between the scaphoid and distal radius using quantitative computed tomography (qCT).</div></div><div><h3>Methods</h3><div>We analyzed 167 cases (110 males, 57 females; mean age 45.2 ± 18.1 years) who underwent qCT including forearm and carpal bones. Exclusion criteria included fractures, arthritis, and implants. BMD was measured separately for cortical and cancellous bone in both the scaphoid and distal radius using phantom-corrected Hounsfield values. Correlations between age and BMD were evaluated using Pearson correlation coefficients.</div></div><div><h3>Results</h3><div>The distal radius showed significant negative correlation with age in overall BMD (<em>r</em> = −0.44) and cancellous BMD (<em>r</em> = −0.40), while the scaphoid showed no significant correlation. Females demonstrated significantly stronger negative correlations than males in both bones. Age-related BMD decline occurred predominantly in cancellous bone. The radius/scaphoid BMD ratio decreased with age (<em>r</em> = −0.51), indicating relatively greater BMD decline in the radius.</div></div><div><h3>Conclusion</h3><div>The distal radius exhibits stronger age-related BMD decline than the scaphoid, particularly in cancellous bone. This differential aging pattern may explain why scaphoid fractures predominate in young individuals while distal radius fractures are more common in the elderly.</div></div>\",\"PeriodicalId\":9301,\"journal\":{\"name\":\"Bone\",\"volume\":\"200 \",\"pages\":\"Article 117612\"},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2025-08-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bone\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S8756328225002248\",\"RegionNum\":2,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENDOCRINOLOGY & METABOLISM\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bone","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S8756328225002248","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENDOCRINOLOGY & METABOLISM","Score":null,"Total":0}
Age-related changes in bone mineral density of the scaphoid and distal radius: A quantitative computed tomography study
Background
Scaphoid fractures predominantly occur in young males, while distal radius fractures occur in elderly females, despite similar injury mechanisms. We hypothesized that age-related bone mineral density (BMD) changes differ between these bones, explaining their distinct fracture patterns. This study compared age-related BMD changes between the scaphoid and distal radius using quantitative computed tomography (qCT).
Methods
We analyzed 167 cases (110 males, 57 females; mean age 45.2 ± 18.1 years) who underwent qCT including forearm and carpal bones. Exclusion criteria included fractures, arthritis, and implants. BMD was measured separately for cortical and cancellous bone in both the scaphoid and distal radius using phantom-corrected Hounsfield values. Correlations between age and BMD were evaluated using Pearson correlation coefficients.
Results
The distal radius showed significant negative correlation with age in overall BMD (r = −0.44) and cancellous BMD (r = −0.40), while the scaphoid showed no significant correlation. Females demonstrated significantly stronger negative correlations than males in both bones. Age-related BMD decline occurred predominantly in cancellous bone. The radius/scaphoid BMD ratio decreased with age (r = −0.51), indicating relatively greater BMD decline in the radius.
Conclusion
The distal radius exhibits stronger age-related BMD decline than the scaphoid, particularly in cancellous bone. This differential aging pattern may explain why scaphoid fractures predominate in young individuals while distal radius fractures are more common in the elderly.
期刊介绍:
BONE is an interdisciplinary forum for the rapid publication of original articles and reviews on basic, translational, and clinical aspects of bone and mineral metabolism. The Journal also encourages submissions related to interactions of bone with other organ systems, including cartilage, endocrine, muscle, fat, neural, vascular, gastrointestinal, hematopoietic, and immune systems. Particular attention is placed on the application of experimental studies to clinical practice.