机构:[1]Department of Orthopedics, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou 510405, Guangdong, China深圳市中医院深圳医学信息中心[2]Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, China深圳市中医院深圳医学信息中心
Hip fracture is a kind of osteoporotic fractures in elderly patients. Its important monitoring indicator is to measure bone mineral density (BMD) using DXA. The stress characteristics and material distribution in different parts of the bones can be well simulated by three-dimensional finite element analysis. Our previous studies have demonstrated a linear positive correlation between clinical BMD and the density of three-dimensional finite element model of the femur. However, the correlation between the density variation between intertrochanteric region and collum femoris region of the model and the fracture site has not been studied yet. The present study intends to investigate whether the regional difference in the density of three-dimensional finite element model of the femur can be used to predict hip fracture site in elderly females. The CT data of both hip joints were collected from 16 cases of elderly female patients with hip fractures. Mimics 15.01 software was used to reconstruct the model of proximal femur on the healthy side. Ten kinds of material properties were assigned. In Abaqus 6.12 software, the collum femoris region and intertrochanteric region were, respectively, drawn for calculating the corresponding regional density of the model, followed by prediction of hip fracture site and final comparison with factual fracture site. The intertrochanteric region/collum femoris region density was [(1.20 ± 0.02) × 10(6)] on the fracture site and [(1.22 ± 0.03) × 10(6)] on the non-fracture site, and the difference was statistically significant (P = 0.03). Among 16 established models of proximal femur on the healthy side, 14 models were consistent with the actual fracture sites, one model was inconsistent, and one model was unpredictable, with the coincidence rate of 87.5 %. The intertrochanteric region or collum femoris region with lower BMD is more prone to hip fracture of the type on the corresponding site.
基金:
Guangdong Provincial Science and Technology Planning Project
(No.: KFC110122K08).
语种:
外文
PubmedID:
中科院(CAS)分区:
出版当年[2014]版:
大类|3 区生物
小类|4 区生化与分子生物学4 区生物物理4 区细胞生物学
最新[2025]版:
大类|4 区生物学
小类|4 区生化与分子生物学4 区生物物理4 区细胞生物学
第一作者:
第一作者机构:[1]Department of Orthopedics, The First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou 510405, Guangdong, China
通讯作者:
推荐引用方式(GB/T 7714):
Lin Z L,Li P F,Pang Z H,et al.Influence of Regional Difference in Bone Mineral Density on Hip Fracture Site in Elderly Females by Finite Element Analysis.[J].Cell biochemistry and biophysics.2015,73(2):405-412.doi:10.1007/s12013-015-0650-4.
APA:
Lin Z L,Li P F,Pang Z H,Zheng X H,Huang F...&Li Q L.(2015).Influence of Regional Difference in Bone Mineral Density on Hip Fracture Site in Elderly Females by Finite Element Analysis..Cell biochemistry and biophysics,73,(2)
MLA:
Lin Z L,et al."Influence of Regional Difference in Bone Mineral Density on Hip Fracture Site in Elderly Females by Finite Element Analysis.".Cell biochemistry and biophysics 73..2(2015):405-412