On estimating the directionality distribution in pedicle trabecular bone from micro-CT images

  title={On estimating the directionality distribution in pedicle trabecular bone from micro-CT images},
  author={Catherine M Gdyczynski and Amir Manbachi and SayedMasoud Hashemi and Bahman Lashkari and R. S. C. Cobbold},
  journal={Physiological Measurement},
  pages={2415 - 2428}
Our interest in the trabecular alignment within bone stems from the need to better understand the manner in which it can affect ultrasound propagation, particularly in pedicles. Within long bones it is well established that trabecular structures are aligned in an organized manner associated with the direction of load distribution; however, for smaller bones there are limited alignment studies. To investigate the directionality distribution in a quantitative manner we used a micro-CT to obtain… 

Organization of Pedicle Trabeculae

This chapter describes the method for quantitatively determining the directions of the trabeculae within pedicletrabecular bone, which uses micro-CT images and is based on the special properties of the Gabor filter that have been exploited for this purpose.

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The design and fabrication of 2MHz ultrasound probes for pedicle screw guidance are described and a 2MHz radial array that consists of 32 elements is designed and fabricated, to eliminate the need for manual rotation of the transducer.

3D pull-out finite element simulation of the pedicle screw-trabecular bone interface at strain rates

  • Ahmet ÇetinD. Bircan
  • Engineering
    Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine
  • 2021
A bone material model which is constructed at the strain rates with the Johnson-Cook (JC) material model, one of the robust constitutive material models, reveals the relationship between pedicle screw diameter and PO performance and exposes whether the strain rate has effects on the PO performance.

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Computer aided model of intact femur, implanted femur and femur bone with resurfacing cup were modeled to represent pre and post operating geometry and reveals that the stress distribution in the proximal femur is strongly affected by the patient activity and surgical procedure.

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Nowadays, cervical disorders are common due to human lifestyles. Accordingly, the cage design should be optimized as an essential issue. For an optimal design, an objective function is utilized to

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Cortex of the pedicle of the vertebral arch. Part II: Microstructure.

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