Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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Maastricht University

in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (4/4 displayed)

  • 2022Fracture behavior of a composite of bone and calcium sulfate/hydroxyapatite6citations
  • 2022Fracture behavior of a composite of bone and calcium sulfate/hydroxyapatite6citations
  • 2021Hip fractures : A biomechanical analysis of fracture strength prediction, prevention, and repaircitations
  • 2019Fracture strength of the proximal femur injected with a calcium sulfate/hydroxyapatite bone substitute21citations

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Raina, Deepak Bushan
3 / 5 shared
Lidgren, Lars
3 / 5 shared
Širka, Aurimas
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Isaksson, Hanna
3 / 17 shared
Törnquist, Elin
2 / 5 shared
Cann, Sophie Le
1 / 6 shared
Grassi, Lorenzo
3 / 5 shared
Novak, Vladimir
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Le Cann, Sophie
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Tarasevičius, Šarūnas
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Tägil, Magnus
1 / 6 shared
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2022
2021
2019

Co-Authors (by relevance)

  • Raina, Deepak Bushan
  • Lidgren, Lars
  • Širka, Aurimas
  • Isaksson, Hanna
  • Törnquist, Elin
  • Cann, Sophie Le
  • Grassi, Lorenzo
  • Novak, Vladimir
  • Le Cann, Sophie
  • Tarasevičius, Šarūnas
  • Tägil, Magnus
OrganizationsLocationPeople

article

Fracture strength of the proximal femur injected with a calcium sulfate/hydroxyapatite bone substitute

  • Raina, Deepak Bushan
  • Lidgren, Lars
  • Širka, Aurimas
  • Tarasevičius, Šarūnas
  • Isaksson, Hanna
  • Tägil, Magnus
  • Grassi, Lorenzo
  • Kok, Joeri
Abstract

<p>Background: Available interventions for preventing fragility hip fractures show limited efficacy. Injection of a biomaterial as bone substitute could increase the fracture strength of the hip. This study aimed to show the feasibility of injecting a calcium sulfate/hydroxyapatite based biomaterial in the femoral neck and to calculate the consequent change in strength using the finite element method. Methods: Five patients were injected with 10 ml calcium sulfate/hydroxyapatite in their femoral neck. Quantitative CT scans were taken before and after injection. Five additional patients with fragility hip fractures were also scanned and the images from the non-fractured contralateral sides were used. Finite element models were created for all proximal femora with and without injection and the models were tested under stance and sideways fall loading until fracture. The change in fracture strength caused by the injection was calculated. Additionally, perturbations in volume, location, and stiffness of the injected material were created to investigate their contribution to the fracture strength increase. Findings: The 10 ml injection succeeded in all patients. Baseline simulations showed theoretical fracture strength increases of 0–9%. Volume increase, change in location and increase in stiffness of the material led to increases in fracture strength of 1–27%, −8-26% and 0–17%, respectively. Altering the location of the injection to a more lateral position and increasing the stiffness of the material led to increases in fracture strength of up to 42%. Interpretation: This study shows that an injection of calcium sulfate/hydroxyapatite is feasible and can theoretically increase the hip's fracture strength.</p>

Topics
  • impedance spectroscopy
  • simulation
  • strength
  • Calcium
  • hot isostatic pressing
  • computed tomography scan