| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Schneider, Johannes
Karlsruhe Institute of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (48/48 displayed)
- 2024Enhancing Supercapacitor Electrochemical Performance with 3D Printed Cellular PEEK/MWCNT Electrodes Coated with PEDOT: PSS
- 2024Enhancing Supercapacitor Electrochemical Performance with 3D Printed Cellular PEEK/MWCNT Electrodes Coated with PEDOT: PSScitations
- 2023Waviness Affects Friction and Abrasive Wear
- 2022Piezoresistive sensing performance of multifunctional MWCNT/HDPE auxetic structures enabled by additive manufacturingcitations
- 2022Multifunctionality of nanoengineered self-sensing lattices enabled by additive manufacturingcitations
- 2022Tribological mechanisms of slurry abrasive wearcitations
- 2022Wear Study of a Magnetron-Sputtered TiC/a-C Nanocomposite Coating under Media-Lubricated Oscillating Sliding Conditionscitations
- 2021Energy absorption characteristics of additively manufactured plate-lattices under low- velocity impact loadingcitations
- 2020Surface engineering of a titanium alloy for tribological applications by nanosecond-pulsed lasercitations
- 2020Cortical thinning and accumulation of large cortical pores in the tibia reflect local structural deterioration of the femoral neckcitations
- 2020Experimental Analysis of microstructured steel surfaces for wet tribological applications in the low velocity regime
- 2020Influence of interstitial oxygen on the tribology of Ti6Al4Vcitations
- 201915: Werkstoffkunde II,Vorlesung, SS 2019, 27.06.2019
- 201916: Werkstoffkunde II,Vorlesung, SS 2019, 01.07.2019
- 201911: Lasereinsatz im Automobilbau, Vorlesung, SS 2019, 11.07.2019
- 2019Large cortical bone pores in the tibia are associated with proximal femur strengthcitations
- 201918: Werkstoffkunde 1, Vorlesung, WS 2018/19, 11.01.2019
- 201913: Werkstoffkunde II, Vorlesung, SS 2019, 24.06.2019
- 201912: Werkstoffkunde II, Vorlesung, SS 2019, 17.06.2019
- 201908: Werkstoffkunde II, Vorlesung, SS 2019, 23.05.2019
- 201919: Werkstoffkunde 1, Vorlesung, WS 2018/19, 15.01.2019
- 201911: Werkstoffkunde II, Vorlesung, SS 2019, 06.06.2019
- 201817: Werkstoffkunde 2, Vorlesung, SS 2018, 14.06.2018
- 201812: Werkstoffkunde 2, Vorlesung, SS2018, 04.06.2018
- 201814: Werkstoffkunde 2, Vorlesung, SS 2018, 07.06.2018
- 201815: Werkstoffkunde 2, Vorlesung, SS 2018, 11.06.2018
- 201813: Werkstoffkunde 1, Vorlesung, WS 2018/19, 07.12.2018
- 201812: Lasereinsatz im Automobilbau, Vorlesung, SS2018, 09.07.2018
- 201805: Werkstoffkunde 2, Vorlesung, SS 2018, 07.05.2018
- 2018Composition of ice particle residuals in mixed-phase clouds at Jungfraujoch (Switzerland): enrichment and depletion of particle groups relative to total aerosolcitations
- 201818: Werkstoffkunde 2, Vorlesung, SS 2018, 18.06.2018
- 201819: Werkstoffkunde 2, Vorlesung, SS 2018, 21.06.2018
- 201717: Werkstoffkunde 1, Vorlesung, WS 2017/18, 19.12.2017
- 201716: Werkstoffkunde 1, Vorlesung, WS 2017/18, 15.12.2017
- 201718: Werkstoffkunde 1, Vorlesung, WS 2017/18, 22.12.2017
- 2017Microstructure, mechanical properties and friction behavior of magnetron-sputtered V-C coatingscitations
- 2016Hydration of magnesia cubes: a helium ion microscopy study
- 2016Chronology of the microstructure evolution for pearlitic steel under unidirectional tribological loadingcitations
- 2013Microstructure, mechanical and friction behavior of magnetronsputtered VC coatings
- 2013Entwicklung und tribologische Charakterisierung von TiC/a-C-Nanokompositen im Hinblick auf den Einsatz in mangelgeschmierten Gleitkontakten
- 2008Laser-supported surface modification of alumina ceramic with regard to improved tribological properties
- 2008Development of surface-modified alumina ceramic for bearing components in liquid media
- 2008Surface modified alumina ceramic for unlubricated tribological applications
- 2008Multiphase Al2O3 ceramic with high resistance to unlubricated sliding wear
- 2008Improved tribological properties of Al2O3 ceramics due to laser-induced surface alloying
- 2008Friction and wear reduction of Al₂O₃ ceramics by laser-induced surface alloying
- 2007Mechanical and tribological properties of Nd- and Yb-SiAlON composites sintered by hot isostatic pressing
- 2001Thermal and electrical properties of laser-modified ceramics
Places of action
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article
Cortical thinning and accumulation of large cortical pores in the tibia reflect local structural deterioration of the femoral neck
Abstract
<p>Introduction: Cortical bone thinning and a rarefaction of the trabecular architecture represent possible causes of increased femoral neck (FN) fracture risk. Due to X-ray exposure limits, the bone microstructure is rarely measurable in the FN of subjects but can be assessed at the tibia. Here, we studied whether changes of the tibial cortical microstructure, which were previously reported to be associated with femur strength, are also associated with structural deteriorations of the femoral neck. Methods: The cortical and trabecular architectures in the FN of 19 humans were analyzed ex vivo on 3D microcomputed tomography images with 30.3 μm voxel size. Cortical thickness (Ct.Th<sub>tibia</sub>), porosity (Ct.Po<sub>tibia</sub>) and pore size distribution in the tibiae of the same subjects were measured using scanning acoustic microscopy (12 μm pixel size). Femur strength during sideways falls was simulated with homogenized voxel finite element models. Results: Femur strength was associated with the total (vBMD<sub>tot</sub>; R<sup>2</sup> = 0.23, p < 0.01) and trabecular (vBMD<sub>trab</sub>; R<sup>2</sup> = 0.26, p < 0.01) volumetric bone mineral density (vBMD), with the cortical thickness (Ct.Th<sub>FN</sub>; R<sup>2</sup> = 0.29, p < 0.001) and with the trabecular bone volume fraction (Tb.BV/TV<sub>FN</sub>; R<sup>2</sup> = 0.34, p < 0.001), separation (Tb.Sp<sub>FN</sub>; R<sup>2</sup> = 0.25, p < 0.01) and number (Tb.N<sub>FN</sub>; R<sup>2</sup> = 0.32, p < 0.001) of the femoral neck. Moreover, smaller Ct.Th<sub>tibia</sub> was associated with smaller Ct.Th<sub>FN</sub> (R<sup>2</sup> = 0.31, p < 0.05), lower Tb.BV/TV<sub>FN</sub> (R<sup>2</sup> = 0.29, p < 0.05), higher Tb.Sp<sub>FN</sub> (R<sup>2</sup> = 0.33, p < 0.05) and lower Tb.N<sub>FN</sub> (R<sup>2</sup> = 0.42, p < 0.01). A higher prevalence of pores with diameter > 100 μm in tibial cortical bone (relCt.Po<sub>100μm-tibia</sub>) indicated higher Tb.Sp<sub>FN</sub> (R<sup>2</sup> = 0.36, p < 0.01) and lower Tb.N<sub>FN</sub> (R<sup>2</sup> = 0.45, p < 0.01). Conclusion: Bone resorption and structural decline of the femoral neck may be identified in vivo by measuring cortical bone thickness and large pores in the tibia.</p>