Publications by authors named "Magdalena Wojtkow"

Purpose: Analgesic treatment with diclofenac deteriorates bone structure and decreases biomechanical properties. This bone loss has been though to be reversed by training. The impact of exercise on bone treated with diclofenac (DF) has reminded elusive.

View Article and Find Full Text PDF
Article Synopsis
  • This research focuses on synthesizing and characterizing a poly(glycerol sebacate) pre-polymer (pPGS) and incorporating nano-hydroxyapatite (HAp) to create a composite for biomedical applications.
  • The microporous composites are developed through a series of processes including thermal cross-linking and salt leaching, and their structural properties are analyzed using various imaging and evaluation techniques.
  • The results demonstrate that the PGS/HAp scaffolds exhibit excellent cytocompatibility and promote osteoblast differentiation while also showing potential for bone tissue reconstruction without adverse effects in vivo.
View Article and Find Full Text PDF

Despite the dynamic development of additive manufacturing technologies, including selective laser sintering (SLS), there is still limited information on the impact of key factors in printing strategy, on the properties of three-dimensional (3D) printed parts. Such factors, such as the orientation of printed layers toward the powder bed or elements target dimensions, seem to be particularly important, from both a mechanical and a structural point of view. Besides, the scientific articles mainly focus on the analysis of one type of loading condition in the samples, that is, the uniaxial tensile test, which were printed on industrial SLS printers.

View Article and Find Full Text PDF

Research in the field of spinal biomechanics, including analyses of the impact of implants on the stability of the spine, is conducted extensively in animal models. One of the basic problems in spinal implantation is the transfer and distribution of loads carried by the spine on the surfaces of the vertebral bodies. An important factor in proper cooperation of spinal implants with the vertebrae is the endplate (EP), which is why the EP in the animal model used for testing should be as similar as possible to the human EP.

View Article and Find Full Text PDF

Unlabelled: Young school-age children are particularly prone to postural defects because they are in a period of development of the spine that is exposed to a number of factors impairing its normal growth. A change in the shape of the spinal column causes a shift in the centre of gravity. Therefore, this study attempted to assess the influence of body posture on distribution of the load transferred by the lower limbs.

View Article and Find Full Text PDF

Background: One of the most important elements of the transpedicular screw implantation technique, which enables a strong screw-bone interface, is the precise choice of the site of screw insertion and the screw's trajectory. Due to the complex biomechanics of the lumbosacral interface and different shape of the sacrum, fixation of this segment remains a challenge for surgeons. Because of this, Kubaszewski et al.

View Article and Find Full Text PDF

Purpose: The aim of this study is to evaluate the influence of the swimming speed during diving on the biomechanical parameters describing the movement of selected measurement points of the lower limb in professional divers.

Methods: The study involved a group of 4 professional divers whose movement was recorded during underwater swimming at slow (approx. 0.

View Article and Find Full Text PDF

Objective: To assess feasibility and accuracy of a new insertion technique of S1 transpedicular screw.

Summary Of Background Data: Transpedicular stabilization in the first sacral vertebra (S1) is a technically demanding surgical procedure with inherent risk of loosening of the implant. A modification of the technique was recently proposed, along with the analytical verification which was performed based on the available literature.

View Article and Find Full Text PDF