Fibre optic Bragg grating sensors: An alternative method to strain gauges for measuring deformation in bone

Fresvig, T.; Ludvigsen, Per; Steen, Harald; Reikerås, Olav

doi:10.1016/j.medengphy.2007.01.006

Cited by 63 publications

(47 citation statements)

References 15 publications

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“…bone and a prosthesis. Such measurements would not be possible with traditional SGs, whose electrical circuitry would be damaged, or with optical methods, since the materials under examination are not transparent [38].…”

Section: Fibre Bragg Grating Sensorsmentioning

confidence: 99%

“…Fresvig et al [38] addressed the suitability of FBGSs for strain measurement on bones by comparing them with SGs. Tests were conducted on an acryl tube and on human femur diaphysis.…”

Section: Most Relevant Studiesmentioning

confidence: 99%

“…Reikeras et al [40] continued from the conclusions of Fresvig [38], and used FBGSs to measure the strains at the implant-cortex interface of a cadaver femur with an implanted stem prosthesis. SGs were used to measure the strains on the external cortex.…”

Section: Most Relevant Studiesmentioning

confidence: 99%

“…Fresvig et al [38] reported non-significant differences between SG and FBGS, but a direct quantitative comparison was not provided. While SGs attain a high linearity in the response, FBGSs have a different sensitivity between positive and negative loads, and a very high sensitivity to temperature gradients [17].…”

Section: Fibre Bragg Grating Sensorsmentioning

confidence: 99%

“…Parts of the figure are reprinted from [38], [66], [67] with permission of Elsevier strain gauges, b) fibre Bragg For each of these techniques, a schematic of the working principle is shown on the right, and an example Elsevier, Spie, and…”

Section: Tablesmentioning

confidence: 99%

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Extracting accurate strain measurements in bone mechanics: A critical review of current methods

Grassi

Isaksson

2015

Journal of the Mechanical Behavior of Biomedical Materials

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Osteoporosis related fractures are a social burden that advocates for more accurate fracture prediction methods. Mechanistic methods, e.g. finite element models, have been proposed as a tool to better predict bone mechanical behaviour and strength. However, there is little consensus about the optimal constitutive law to describe bone as a material. Extracting reliable and relevant strain data from experimental tests is of fundamental importance to better understand bone mechanical properties, and to validate numerical models.Several techniques have been used to measure strain in experimental mechanics, with substantial differences in terms of accuracy, precision, time-and length-scale. Each technique presents upsides and downsides that must be carefully evaluated when designing the experiment. Moreover, additional complexities are often encountered when applying such strain measurement techniques to bone, due to its complex composite structure. 2This review of literature examined the four most commonly adopted methods for strain measurements (strain gauges, fibre Bragg grating sensors, digital image correlation, and digital volume correlation), with a focus on studies with bone as a substrate material, at the organ and tissue level. For each of them the working principles, a summary of the main applications to bone mechanics at the organ-and tissue-level, and a list of pros and cons are provided.

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Section: Fibre Bragg Grating Sensorsmentioning

confidence: 99%

“…Fresvig et al [38] addressed the suitability of FBGSs for strain measurement on bones by comparing them with SGs. Tests were conducted on an acryl tube and on human femur diaphysis.…”

Section: Most Relevant Studiesmentioning

confidence: 99%

Section: Most Relevant Studiesmentioning

confidence: 99%

Section: Fibre Bragg Grating Sensorsmentioning

confidence: 99%

Section: Tablesmentioning

confidence: 99%

See 3 more Smart Citations

Extracting accurate strain measurements in bone mechanics: A critical review of current methods

Grassi

Isaksson

2015

Journal of the Mechanical Behavior of Biomedical Materials

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Body‐Monitoring and Health Supervision by Means of Optical Fiber‐Based Sensing Systems in Medical Textiles

Quandt

Scherer

Boesel

et al. 2014

Adv Healthcare Materials

128

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Long-term monitoring with optical fibers has moved into the focus of attention due to the applicability for medical measurements. Within this Review, setups of flexible, unobtrusive body-monitoring systems based on optical fibers and the respective measured vital parameters are in focus. Optical principles are discussed as well as the interaction of light with tissue. Optical fiber-based sensors that are already used in first trials are primarily selected for the section on possible applications. These medical textiles include the supervision of respiration, cardiac output, blood pressure, blood flow and its saturation with hemoglobin as well as oxygen, pressure, shear stress, mobility, gait, temperature, and electrolyte balance. The implementation of these sensor concepts prompts the development of wearable smart textiles. Thus, current sensing techniques and possibilities within photonic textiles are reviewed leading to multiparameter designs. Evaluation of these designs should show the great potential of optical fibers for the introduction into textiles especially due to the benefit of immunity to electromagnetic radiation. Still, further improvement of the signal-to-noise ratio is often necessary to develop a commercial monitoring system.

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Highly Stretchable, Strain Sensing Hydrogel Optical Fibers

et al. 2016

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Fibre optic Bragg grating sensors: An alternative method to strain gauges for measuring deformation in bone

Cited by 63 publications

References 15 publications

Extracting accurate strain measurements in bone mechanics: A critical review of current methods

Extracting accurate strain measurements in bone mechanics: A critical review of current methods

Body‐Monitoring and Health Supervision by Means of Optical Fiber‐Based Sensing Systems in Medical Textiles

Highly Stretchable, Strain Sensing Hydrogel Optical Fibers

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