Age-related reductions in the strength of the femur tested in a fall-loading configuration.

Courtney, Amy; Wachtel, Edward F.; Myers, Elizabeth; Hayes, Wilson C.

doi:10.2106/00004623-199503000-00008

Cited by 255 publications

(146 citation statements)

References 28 publications

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“…However, when a male subject with clenched muscles falling from a height of 1.2m was modeled, peak forces of 16 kN were estimated. Although this value exceeds the threshold measured in this study, it is likely that the femur or pelvis (rather than the ceramic liner) would fracture under these loads [18,19,20].…”

Section: Resultsmentioning

confidence: 55%

Mechanical performance of ceramic acetabular liners under impact conditions

Maher

Lipman

Curley

et al. 2003

The Journal of Arthroplasty

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Publication information The Journal of Arthroplasty, 18 (7): 936-941Publisher Elsevier Item record/more information http://hdl.handle.net/10197/4653 Publisher's statementThis is the author's version of a work that was accepted for publication in The Journal of Arthroplasty. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in The Journal of Arthroplasty (18, 7, (2003)

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Section: Resultsmentioning

confidence: 55%

Mechanical performance of ceramic acetabular liners under impact conditions

Maher

Lipman

Curley

et al. 2003

The Journal of Arthroplasty

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“…To simulate sideways falling, the most commonly used force direction from previous experimental studies [10,32,33] was chosen. The femoral shaft was tilted at 10° with respect to the ground and the femoral neck was internally rotated by 15° (Fig.…”

mentioning

confidence: 99%

“…The femoral shaft was tilted at 10° with respect to the ground and the femoral neck was internally rotated by 15° (Fig. 2) [10,32,33]. The individual impact force was estimated using the equation proposed by Bouxsein et al [34]:…”

mentioning

confidence: 99%

Exercise loading history and femoral neck strength in a sideways fall: A three-dimensional finite element modeling study

Abe

Narra

Nikander

et al. 2016

Bone

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“…BMC divided by the area or volume of the bone estimates BMD. In laboratory studies, there is a high correlation (R 2 = 0.4-0.9) between BMD and the force needed to break a bone (8,9). Other determinants of bone strength include size (larger bones are stronger), macroscopic structure (long bones with greater cross-sectional areas are more resistant to bending), microscopic structure (microscopic cracks and loss of normal trabecular architecture weaken a bone), and the composition of bone proteins (abnormal collagen weakens bones).…”

Section: Measurement Of Bmdmentioning

confidence: 99%

Bone density testing in clinical practice

Lewiecki

Borges

2006

Arq Bras Endocrinol Metab

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The diagnosis of osteoporosis and monitoring of treatment is a challenge for physicians due to the large number of available tests and complexities of interpretation. Bone mineral density (BMD) testing is a non-invasive measurement to assess skeletal health. The "gold-standard" technology for diagnosis and monitoring is dual-energy X-ray absorptiometry (DXA) of the spine, hip, or forearm. Fracture risk can be predicted using DXA and other technologies at many skeletal sites. Despite guidelines for selecting patients for BMD testing and identifying those most likely to benefit from treatment, many patients are not being tested or receiving therapy. Even patients with very high risk of fracture, such as those on longterm glucocorticoid therapy or with prevalent fragility fractures, are often not managed appropriately. The optimal testing strategy varies according to local availability and affordability of BMD testing. The role of BMD testing to monitor therapy is still being defined, and interpretation of serial studies requires special attention to instrument calibration, acquisition technique, analysis, and precision assessment. BMD is usually reported as a T-score, the standard deviation variance of the patient's BMD compared to a normal young-adult reference population. BMD in postmenopausal women is classified as normal, osteopenia, or osteoporosis according to criteria established by the World Health Organization. Standardized methodologies are being developed to establish cost-effective intervention thresholds for pharmacological therapy based on T-score combined with clinical risk factors for fracture. RESUMO Densitometria Óssea na Prática Clínica.O diagnóstico e monitoração do tratamento da osteoporose é um desafio para os médicos devido ao grande número de testes disponíveis e a complexidades da interpretação. O exame da densidade mineral óssea é uma medida não-invasiva da avaliação da saúde esquelética. A tecnologia "padrão-ouro" para o diagnóstico e monitoração é a absorciometria por raios-X duo-energética (DXA) da coluna, quadril ou antebraço. O risco de fratura pode ser previsto usando DXA e outras tecnologias em vários sítios esqueléticos. Apesar das diretrizes para a medida de da DMO e identificação daqueles que mais provavelmente irão se beneficiar do tratamento, muitos pacientes não estão sendo testados ou recebendo tratamento. Mesmo pacientes com elevado risco de fratura, tais como aqueles em terapia de longo prazo com glicocorticóides, ou mesmo aqueles com fraturas por fragilidade prevalentes, quase nunca estão sendo conduzidos adequadamente. A estratégia diagnóstica ótima varia de acordo com a disponibilidade e acesso à medida da DMO. O papel da medida da DMO para monitorar terapia ainda está sendo definido, e a interpretação de estudos seriados requer

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Age-related reductions in the strength of the femur tested in a fall-loading configuration.

Cited by 255 publications

References 28 publications

Mechanical performance of ceramic acetabular liners under impact conditions

Mechanical performance of ceramic acetabular liners under impact conditions

Exercise loading history and femoral neck strength in a sideways fall: A three-dimensional finite element modeling study

Bone density testing in clinical practice

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