Bone mineral density in patients with cervical and trochanteric fractures of the proximal femur

1991 ◽  
Vol 1 (2) ◽  
pp. 81-86 ◽  
Author(s):  
E. Vega ◽  
C. Mautalen ◽  
H. Gómez ◽  
A. Garrido ◽  
L. Melo ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Proximal Femur ◽  
Trochanteric Fractures ◽  
Mineral Density

Preservation of Bone Mineral Density of the Proximal Femur Following Hemisurface Arthroplasty

Orthopedics ◽  
2004 ◽  
Vol 27 (12) ◽  
pp. 1266-1271 ◽  
Author(s):  
Harlan C Amstutz ◽  
Edward Ebramzadeh ◽  
Akos Sarkany ◽  
Michel Le Duff ◽  
Robert Rude
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Proximal Femur ◽  
Mineral Density

Bone Mineral Density Assessment by DXA vs. QCT in Postmenopausal Females with Central Obesity

2020 ◽  
Vol 13 (2) ◽  
pp. 153-161
Author(s):  
Lejla Milisic ◽  
Sandra Vegar-Zubovic ◽  
Amina Valjevac ◽  
Suada Hasanovic-Vučković
Keyword(s):  
Bone Mineral Density ◽  
Lumbar Spine ◽  
Bone Mineral ◽  
Proximal Femur ◽  
Central Obesity ◽  
Quantitative Computed Tomography ◽  
Normal Weight ◽  
Mineral Density ◽  
Cross Sectional ◽  
T Score

Objectives: Although Dual-energy X-ray Absorptiometry (DXA) is gold standard for osteoporosis diagnosis, several reports have shown discordant T-score values measured by Quantitative Computed Tomography (QCT) and DXA especially in obese subjects, but it is still not clear whether BMD measurement by two modalities is affected by overall obesity or central obesity in postmenopausal females. Therefore, the aims of this study were to compare BMD and T-scores by DXA and QCT and to evaluate whether these two osteoporosis assessment modalities yield different T-score values in postmenopausal females with obesity and central obesity. Methods: This cross-sectional study enrolled 44 postmenopausal females, referred for osteoporosis screening. Anthropometric indices (BMI-body mass index, WC-waist circumference and ICOindex of central obesity) were measured and females underwent an assessment of bone mineral density by DXA and QCT. Results: Lumbar Spine (LS) T-score values were observed to be significantly lower by DXA compared to qCT in females with BMI >25 kg/m2, (-1.9±1.5 vs. -2.3±1.2; p=0.039), in females with WC>88 cm(-1.9±1.5 vs. -2.4±1.2; p=0.008) and in females with ICO>0.5(-1.96±1.4 vs. -2.5±1.2; p=0.004). However, in normal-weight females and in those without central obesity, LS T-scores by DXA were not different than qCT. DXA at lumbar spine and proximal femur revealed osteoporosis in 47.7% and 11.4% respectively, while QCT detected osteoporosis in 61.4% of females (p<0.001). Measures of central obesity; ICO and WC were not associated with QCT bone mineral density (BMD) (r=0.14 and r=0.21, respectively), but were positively associated with both DXALS BMD (r=0.29 and r=0.31; p<0.05) and DXA proximal femur BMD (r=0.41 and r=0.44; p<0.01). Conclusion: Our results suggest that obesity is associated with lower T-scores by DXA compared to QCT. Caution is needed when assessing osteoporosis status in obese postmenopausal females. However, further studies with larger sample size are needed to confirm the findings.

scholarly journals 3-T MR Imaging of Proximal Femur Microarchitecture in Subjects with and without Fragility Fracture and Nonosteoporotic Proximal Femur Bone Mineral Density

Radiology ◽  
2018 ◽  
Vol 287 (2) ◽  
pp. 608-619 ◽  
Author(s):  
Gregory Chang ◽  
Chamith S. Rajapakse ◽  
Cheng Chen ◽  
Arakua Welbeck ◽  
Kenneth Egol ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Mr Imaging ◽  
Bone Mineral ◽  
Fragility Fracture ◽  
Proximal Femur ◽  
Mineral Density ◽  
Femur Bone

Bone Mineral Density, Body Mass Index, and Hip Axis Length in Postmenopausal Cretan Women with Cervical and Trochanteric Fractures

1999 ◽  
Vol 64 (3) ◽  
pp. 257-258 ◽  
Author(s):  
Emm. K. Dretakis ◽  
E. Papakitsou ◽  
G. M. Kontakis ◽  
K. Dretakis ◽  
S. Psarakis ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Body Mass Index ◽  
Body Mass ◽  
Bone Mineral ◽  
Trochanteric Fractures ◽  
Mineral Density ◽  
Hip Axis Length ◽  
Axis Length

Bone mineral density of lumbar spine and proximal femur in healthy males

2004 ◽  
Vol 259 (2) ◽  
pp. 361-364 ◽  
Author(s):  
S. Akin ◽  
S. Isikli ◽  
F. Korkusuz ◽  
M. Ungan ◽  
A. Senkoylu
Keyword(s):  
Bone Mineral Density ◽  
Lumbar Spine ◽  
Bone Mineral ◽  
Proximal Femur ◽  
Mineral Density ◽  
Healthy Males

scholarly journals Mechanical torque measurement in the proximal femur correlates to failure load and bone mineral density ex vivo

2013 ◽  
Vol 5 (2) ◽  
pp. 16 ◽  
Author(s):  
Stefan Grote ◽  
Tatjana Noeldeke ◽  
Michael Blauth ◽  
Wolf Mutschler ◽  
Dominik Bürklein
Keyword(s):  
Bone Mineral Density ◽  
Femoral Neck ◽  
Bone Quality ◽  
Bone Mineral ◽  
Proximal Femur ◽  
Failure Load ◽  
Peak Torque ◽  
Mineral Density ◽  
Local Bone ◽  
Load To Failure

Knowledge of local bone quality is essential for surgeons to determine operation techniques. A device for intraoperative measurement of local bone quality has been developed by the AO-Research Foundation (DensiProbe®). We used this device to experimentally measure peak breakaway torque of trabecular bone in the proximal femur and correlated this with local bone mineral density (BMD) and failure load. Bone mineral density of 160 cadaver femurs was measured by <em>ex situ </em>dual-energy X-ray absorptiometry. The failure load of all femurs was analyzed by side-impact analysis. Femur fractures were fixed and mechanical peak torque was measured with the DensiProbe® device. Correlation was calculated whereas correlation coefficient and significance was calculated by Fisher’s Z-transformation. Moreover, linear regression analysis was carried out. The unpaired Student’s t-test was used to assess the significance of differences. The Ward triangle region had the lowest BMD with 0.511 g/cm2 (±0.17 g/cm2), followed by the upper neck region with 0.546 g/cm2 (±0.16 g/cm2), trochanteric region with 0.685 g/cm2 (±0.19 g/cm2) and the femoral neck with 0.813 g/cm2 (±0.2 g/cm2). Peak torque of DensiProbe® in the femoral head was 3.48 Nm (±2.34 Nm). Load to failure was 4050.2 N (±1586.7 N). The highest correlation of peak torque measured by Densi Probe® and load to failure was found in the femoral neck (r=0.64, P&lt;0.001). The overall correlation of mechanical peak torque with T-score was r=0.60 (P&lt;0.001). A correlation was found between mechanical peak torque, load to failure of bone and BMD <em>in vitro</em>. Trabecular strength of bone and bone mineral density are different aspects of bone strength, but a correlation was found between them. Mechanical peak torque as measured may contribute additional information about bone strength, especially in the perioperative testing.

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