scholarly journals Proximal tibia volumetric bone mineral density is correlated to the magnitude of local acceleration in male long-distance runners

2010 ◽  
Vol 108 (4) ◽  
pp. 852-857 ◽  
Author(s):  
Olivier Dériaz ◽  
Bijan Najafi ◽  
Pierluigi Ballabeni ◽  
Antoinette Crettenand ◽  
Charles Gobelet ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Proximal Tibia ◽  
Three Dimensional ◽  
Heel Strike ◽  
Volumetric Bone Mineral Density ◽  
Mineral Density ◽  
Long Distance ◽  
Beneficial Effects ◽  
A Prospective Study

The beneficial effect of physical exercise on bone mineral density (BMD) is at least partly explained by the forces exerted directly on the bones. Male runners present generally higher BMD than sedentary individuals. We postulated that the proximal tibia BMD is related to the running distance, as well as to the magnitude of the shocks (while running) in male runners. A prospective study (three yearly measurements) included 81 healthy male subjects: 16 sedentary lean subjects, and 3 groups of runners (5–30 km/wk, n = 19; 30–50 km/wk, n = 29; 50–100 km/wk, n = 17). Several measurements were performed at the proximal tibia level: volumetric BMD (vBMD) and cortical index (CI), i.e., an index of cortical bone thickness and peak accelerations (an index of shocks during heel strike) while running (measured by a three-dimensional accelerometer). A general linear model assessed the prediction of vBMD or CI by 1) simple effects (running distance, peak accelerations, time); and 2) interactions (for instance, if vBMD prediction by peak acceleration depends on running distance). CI and vBMD 1) increase with running distance to reach a plateau over 30 km/wk; and 2) are positively associated with peak accelerations over 30 km/wk. Running may be associated with high peak accelerations to have beneficial effects on BMD. More important strains are needed to be associated with the same increase in BMD during running sessions of short duration than those of long duration. CI and vBMD are associated with the magnitude of the shocks during heel strike in runners.

A Registration Method for Three-Dimensional Analysis of Bone Mineral Density in the Proximal Tibia

2020 ◽  
Vol 143 (1) ◽  
Author(s):  
Hugo Babel ◽  
Loïc Wägeli ◽  
Berke Sonmez ◽  
Jean-Philippe Thiran ◽  
Patrick Omoumi ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Proximal Tibia ◽  
Three Dimensional ◽  
Field Of View ◽  
3D Analysis ◽  
Mineral Density ◽  
Comprehensive Description ◽  
Registration Method ◽  
The Relationship

Abstract Although alterations in bone mineral density (BMD) at the proximal tibia have been suggested to play a role in various musculoskeletal conditions, their pathophysiological implications and their value as markers for diagnosis remain unclear. Improving our understanding of proximal tibial BMD requires novel tools for three-dimensional (3D) analysis of BMD distribution. Three-dimensional imaging is possible with computed tomography (CT), but computational anatomy algorithms are missing to standardize the quantification of 3D proximal tibial BMD, preventing distribution analyses. The objectives of this study were to develop and assess a registration method, suitable with routine knee CT scans, to allow the standardized quantification of 3D BMD distribution in the proximal tibia. Second, as an example of application, the study aimed to characterize the distribution of BMD below the tibial cartilages in healthy knees. A method was proposed to register both the surface (vertices) and the content (voxels) of proximal tibias. The method combines rigid transformations to account for differences in bone size and position in the scanner's field of view and to address inconsistencies in the portion of the tibial shaft included in routine CT scan, with a nonrigid transformation locally matching the proximal tibias. The method proved to be highly reproducible and provided a comprehensive description of the relationship between bone depth and BMD. Specifically it reported significantly higher BMD in the first 6 mm of bone than deeper in the proximal tibia. In conclusion, the proposed method offers promising possibilities to analyze BMD and other properties of the tibia in 3D.

scholarly journals Three-Dimensional Quantification of Bone Mineral Density in the Distal Femur and Proximal Tibia Based on Computed Tomography: In Vitro Evaluation of an Extended Standardization Method

2021 ◽  
Vol 10 (1) ◽  
pp. 160
Author(s):  
Hugo Babel ◽  
Patrick Omoumi ◽  
Killian Cosendey ◽  
Hugues Cadas ◽  
Brigitte M. Jolles ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Bone Mineral Density ◽  
Bone Mineral ◽  
Distal Femur ◽  
Proximal Tibia ◽  
Intraclass Correlation ◽  
Three Dimensional ◽  
Standardization Method ◽  
Mineral Density ◽  
Precision Error

While alterations in bone mineral density (BMD) are of interest in a number of musculoskeletal conditions affecting the knee, their analysis is limited by a lack of tools able to take full advantage of modern imaging modalities. This study introduced a new method, combining computed tomography (CT) and computational anatomy algorithms, to produce standardized three-dimensional BMD quantification in the distal femur and proximal tibia. The method was evaluated on ten cadaveric knees CT-scanned twice and processed following three different experimental settings to assess the influence of different scans and operators. The median reliability (intraclass correlation coefficient (ICC)) ranged from 0.96 to 0.99 and the median reproducibility (precision error (RMSSD)) ranged from 3.97 to 10.75 mg/cc for the different experimental settings. In conclusion, this paper presented a method to standardize three-dimensional knee BMD with excellent reliability and adequate reproducibility to be used in research and clinical applications. The perspectives offered by this novel method are further reinforced by the fact it relies on conventional CT scan of the knee. The standardization method introduced in this work is not limited to BMD and could be adapted to quantify other bone parameters in three dimension based on CT images or images acquired using different modalities.

scholarly journals Changes to Volumetric Bone Mineral Density and Bone Strength after Stroke: A Prospective Study

2013 ◽  
Vol 10 (3) ◽  
pp. 396-399 ◽  
Author(s):  
Karen Borschmann ◽  
Marco Y. C. Pang ◽  
Sandra Iuliano ◽  
Leonid Churilov ◽  
Amy Brodtmann ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Prospective Study ◽  
Bone Strength ◽  
Bone Mineral ◽  
Volumetric Bone Mineral Density ◽  
Mineral Density ◽  
A Prospective Study

scholarly journals The Association of Lumbar Disc Herniation with Lumbar Volumetric Bone Mineral Density in a Cross-Sectional Chinese Study

Diagnostics ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 938
Author(s):  
Jian Geng ◽  
Ling Wang ◽  
Qing Li ◽  
Pengju Huang ◽  
Yandong Liu ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Lumbar Disc Herniation ◽  
Disc Herniation ◽  
Lumbar Disc ◽  
Magnetic Resonance Images ◽  
Volumetric Bone Mineral Density ◽  
Mineral Density ◽  
Men And Women ◽  
The Relationship

Little is known about the effect of lumbar intervertebral disc herniation (LDH) on lumbar bone mineral density (BMD), and few previous studies have used quantitative computed tomography (QCT) to assess whether the staging of LDH correlates with lumbar vertebral trabecular volumetric bone mineral density (Trab.vBMD). To explore the relationship between lumbar Trab.vBMD and LDH, seven hundred and fifty-four healthy participants aged 20–60 years were enrolled in the study from an ongoing study on the degeneration of the spine and knee between June 2014 and 2017. QCT was used to measure L2–4 Trab.vBMD and lumbar spine magnetic resonance images (MRI) were performed to assess the incidence of disc herniation. After 9 exclusions, a total of 322 men and 423 women remained. The men and women were divided into younger (age 20–39 years) and older (age 40–60 years) groups and further into those without LDH, with a single LDH segment, and with ≥2 segments. Covariance analysis was used to adjust for the effects of age, BMI, waistline, and hipline on the relationship between Trab.vBMD and LDH. Forty-one younger men (25.0%) and 59 older men (37.3%) had at least one LDH segment. Amongst the women, the numbers were 46 (22.5%) and 80 (36.4%), respectively. Although there were differences in the characteristics data between men and women, the difference in Trab.vBMD between those without LDH and those with single and ≥2 segments was not statistically significant (p > 0.05). These results remained not statistically significant after further adjusting for covariates (p > 0.05). No associations between lumbar disc herniation and vertebral trabecular volumetric bone mineral density were observed in either men or women.

Ischemic heart disease is associated with lower cortical volumetric bone mineral density of distal radius

2015 ◽  
Vol 26 (7) ◽  
pp. 1893-1901 ◽  
Author(s):  
J. Paccou ◽  
M. H. Edwards ◽  
K. A. Ward ◽  
K. A. Jameson ◽  
C. L. Moss ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Heart Disease ◽  
Ischemic Heart Disease ◽  
Distal Radius ◽  
Bone Mineral ◽  
Ischemic Heart ◽  
Volumetric Bone Mineral Density ◽  
Mineral Density

scholarly journals Volumetric bone mineral density at the spine and hip in Chinese American and White women

2011 ◽  
Vol 23 (10) ◽  
pp. 2499-2506 ◽  
Author(s):  
M. D. Walker ◽  
I. Saeed ◽  
D. J. McMahon ◽  
J. Udesky ◽  
G. Liu ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
White Women ◽  
Chinese American ◽  
Volumetric Bone Mineral Density ◽  
Mineral Density

scholarly journals Differences in volumetric bone mineral density (vBMD) at the radius and tibia in premenopausal Caucasian and Asian women

Bone ◽  
2011 ◽  
Vol 48 ◽  
pp. S269-S270
Author(s):  
O. Hakim ◽  
A. Darling ◽  
K. Hart ◽  
J. Berry ◽  
S. Lanham-New
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Asian Women ◽  
Volumetric Bone Mineral Density ◽  
Mineral Density
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