Mechanics of osteoporotic trabecular bone

Bérot, Maxime; Aurégan, Jean-Charles; Imbert, Laurianne; Magoariec, Hélène; Budyn, Elisa; Zadegan, Frédéric; Hannouche, Didier; Bensidhoum, Morad; Hoc, Thierry

doi:10.1051/meca/2012023

Cited by 3 publications

(2 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A low-level diode laser with low-energy density range can influence on bone tissue with biostimulatory effects on bone tissue prone to various pathologies [15]. Analysis of the mechanical properties of bones susceptible to osteoporosis is described in [16]. Such medical operations should be carried out under appropriate environmental conditions, as detailed in [17].…”

Section: Introductionmentioning

confidence: 99%

“…It is possible to automate the movements of the tip of the diode laser, shifting the function of moving the medical instrument to the robot [24][25][26]. To apply the robot to perform operations [14][15][16][17], it is necessary to quantify its advantages in comparison with the surgeon. Metrological [27][28][29] comparison of the movements of the medical instrument is expedient to carry out according to trajectories predetermined for both the robot and the surgeon, which are a means of obtaining quantitative information about the movement.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cutting velocity accuracy as a criterion for comparing robot trajectories and manual movements for medical industry

Vorotnikov

Klimov

Romash

et al. 2017

Mechanics & Industry

View full text Add to dashboard Cite

Abstract. Industrial robots perform technological operations, such as spot and arc welding, machining and laser cutting along different trajectories within their performance characteristics. The evaluation of these characteristics is carried out according to the criteria of the standard ISO 9283. The criteria of this standard are applicable in industrial manufacturing, but not in the medical industry, as they are not developed in the framework of medical tasks. Therefore, it is necessary to evaluate according to criteria built on different principles. In this article, the question of comparative evaluation of trajectories from program movements of a robot and manual movements of a surgeon, arising during the development of robotic medical complexes using industrial robots, is considered. A comparative evaluation is required to prove the expediency of automating medical operations in maxillofacial surgery. This study focuses on the estimation of velocity accuracy of a medical instrument. To obtain the velocity of the medical instrument, coordinates of the trajectory points from the program movements of the robot KUKA LWR4+ and trajectories from the manual movements of a professional surgeon have been measured. The measurement was carried out using a coordinate measuring machine, the laser tracker Leica LTD800. The accuracy estimation was carried out by two criteria: the criterion set out in the ISO 9283 standard, and the developed alternative criterion, the description of which is presented in this article. A quantitative comparative evaluation of the trajectories of a robot and a surgeon was obtained.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cutting velocity accuracy as a criterion for comparing robot trajectories and manual movements for medical industry

Vorotnikov

Klimov

Romash

et al. 2017

Mechanics & Industry

View full text Add to dashboard Cite

show abstract

Osteoporosis-related variations of trabecular bone properties of proximal human humeral heads at different scale lengths

Molino

Dalpozzi

Ciapetti

et al. 2019

Journal of the Mechanical Behavior of Biomedical Materials

View full text Add to dashboard Cite

Imaging Techniques for the Assessment of the Bone Osteoporosis-Induced Variations with Particular Focus on Micro-CT Potential

Molino¹,

Montalbano²,

Pontremoli³

et al. 2020

Applied Sciences

View full text Add to dashboard Cite

For long time, osteoporosis (OP) was exclusively associated with an overall bone mass reduction, leading to lower bone strength and to a higher fracture risk. For this reason, the measurement of bone mineral density through dual X-ray absorptiometry was considered the gold standard method for its diagnosis. However, recent findings suggest that OP causes a more complex set of bone alterations, involving both its microstructure and composition. This review aims to provide an overview of the most evident osteoporosis-induced alterations of bone quality and a résumé of the most common imaging techniques used for their assessment, at both the clinical and the laboratory scale. A particular focus is dedicated to the micro-computed tomography (micro-CT) due to its superior image resolution, allowing the execution of more accurate morphometric analyses, better highlighting the architectural alterations of the osteoporotic bone. In addition, micro-CT has the potential to perform densitometric measurements and finite element method analyses at the microscale, representing potential tools for OP diagnosis and for fracture risk prediction. Unfortunately, technological improvements are still necessary to reduce the radiation dose and the scanning duration, parameters that currently limit the application of micro-CT in clinics for OP diagnosis, despite its revolutionary potential.

show abstract

Mechanics of osteoporotic trabecular bone

Cited by 3 publications

References 38 publications

Cutting velocity accuracy as a criterion for comparing robot trajectories and manual movements for medical industry

Cutting velocity accuracy as a criterion for comparing robot trajectories and manual movements for medical industry

Osteoporosis-related variations of trabecular bone properties of proximal human humeral heads at different scale lengths

Imaging Techniques for the Assessment of the Bone Osteoporosis-Induced Variations with Particular Focus on Micro-CT Potential

Contact Info

Product

Resources

About