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3. Contributors

Author

Bader, R., primary, Bergschmidt, P., additional, Botchu, R., additional, Burke, M., additional, Chen, Antonia F., additional, Couzens, G., additional, Cross, M.J., additional, Cui, W., additional, Dan, M.J., additional, David Blaha, J., additional, Dowson, D., additional, Dunne, N., additional, Dunne, T.J., additional, Fisher, J., additional, Goodman, S.B., additional, Gross, Christopher E., additional, Hallab, Nadim, additional, Hussain, S., additional, Iqbal, A., additional, James, S.L., additional, Jin, Z., additional, Johnson, G.R., additional, Joyce, Thomas J., additional, Juvonen, T., additional, Kang, J.R., additional, Kedgley, A.E., additional, Klawitter, J., additional, Kluess, D., additional, Kovač, Simon, additional, Kraeima, J., additional, Lappalainen, R., additional, Levašič, Vesna, additional, Merema, B.J., additional, Milošev, Ingrid, additional, Mittelmeier, W., additional, Neville, A., additional, Palanca, Ariel A., additional, Revell, M., additional, Revell, P.A., additional, Roger, G.J., additional, Ross, Mark, additional, Sahebalzamani, M., additional, Sanchez-Sotelo, J., additional, Selenius, M., additional, Sillat, Tarvo, additional, Sivananthan, S., additional, Spijkervet, F.K.L., additional, Spycher, J., additional, Tiainen, Veli-Matti, additional, Trebše, Rihard, additional, Tzagiollari, A., additional, Van Bakelen, N.B., additional, Virtanen, Sannakaisa, additional, Vogel, D., additional, and Williams, Daniel, additional

Published
2021
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26. Contributor contact details

Author

Jin, Z., primary, Ren, L., additional, Qian, Z., additional, Strickland, M., additional, Taylor, M., additional, Rodriguez, M.L., additional, Sniadecki, N.J., additional, Marino, M., additional, Vairo, G., additional, Siebert, T., additional, Rode, C., additional, Li, L.P., additional, Ahsanizadeh, S., additional, Gong, H., additional, Wang, L., additional, Zhang, M., additional, Fan, Y., additional, Abdel-Wahab, A., additional, Li, S., additional, Silberschmidt, V.V, additional, Lennon, A.B., additional, Stach, S., additional, Schulze, C., additional, Zietz, C., additional, Souffrant, R., additional, Bader, R., additional, Kluess, D., additional, Geringer, J., additional, Imbert, L., additional, Kim, K., additional, Muller, J.H., additional, Noailly, J., additional, Malandrino, A., additional, Galbusera, F., additional, Boccaccio, A., additional, Pappalettere, C., additional, Messina, A., additional, and Scaraggi, M., additional

Published
2014
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27. Contributor contact details

Author

Revell, P.A., primary, Johnson, G., additional, Jin, Z., additional, Fisher, J., additional, Nair, A., additional, Baker, D.W., additional, Tang, L., additional, Konttinen, Y.T., additional, Milošev, I., additional, Trebše, R., additional, van der Linden, R., additional, Pieper, J., additional, Sillat, T., additional, Virtanen, S., additional, Tiainen, V-M., additional, Kluess, D., additional, Bergschmidt, P., additional, Mittelmeier, W., additional, Bader, R., additional, Lappalainen, R., additional, Juvonen, T., additional, Selenius, M., additional, Cross, M.J., additional, Roger, G.J., additional, Spycher, J., additional, Dunne, N., additional, Clements, J., additional, Wang, J-S., additional, Sivananthan, S., additional, Goodman, S., additional, Dowson, D., additional, Neville, A., additional, Botchu, R., additional, James, S.L., additional, Revell, M., additional, Blaha, J., additional, Hallab, N.J., additional, Singh, V., additional, De Wilde, L., additional, Van Tongel, A., additional, Aronowitz, J.G., additional, Sanchez-Sotelo, J., additional, Ross, M., additional, James, C., additional, Couzens, G., additional, and Klawitter, J., additional

Published
2014
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34. Contributor contact details

Author

Revell, P.A., primary, Ridge, High, additional, Johnson, G.R., additional, Jin, Z., additional, Fisher, J., additional, Bundy, K.J., additional, Katti, K.S., additional, Verma, D., additional, Katti, D.R., additional, Damien, E., additional, Damien, S.M., additional, Damien, C.S., additional, Paul, B., additional, Konttinen, Y.T., additional, Milosev, I., additional, Trebse, R., additional, Rantanen, P., additional, Linden, R., additional, Tiainen, V.M., additional, Virtanen, S., additional, Kluess, D., additional, Mittelmeier, W., additional, Bader, R., additional, Lappalainen, R., additional, Selenius, M., additional, Cross, M.J., additional, Spycher, J., additional, Wang, J.S., additional, Dunne, N., additional, Hatton, P.V., additional, Kearns, V., additional, Kearns, I.M., additional, Burke, M., additional, Goodman, S., additional, Ryd, L., additional, Revell, P.A., additional, Pioletti, D.P., additional, Ianuzzi, A., additional, Kurtz, S.M., additional, Dowson, D., additional, Revell, M., additional, Davis, E. T, additional, Blaha, J.D., additional, Hallab, N., additional, Van Loon, J.P., additional, De Bont, L.G.M., additional, Verkerke, G.J., additional, Kofoed, H., additional, De Wilde, L., additional, Sanchez-Sotelo, J., additional, Stanley, J., additional, Klawitter, J., additional, and More, R., additional

Published
2008
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35. Dynamische Untersuchung unterschiedlicher Einflussparameter auf die Funktion und Stabilität ungekoppelter Oberflächenersatz-Knieendoprothesen

Author

Kebbach, M, Grawe, R, Geier, A, Winter, E, Bergschmidt, P, Kluess, D, Woernle, C, and Bader, R

Subjects
ddc: 610, Knieendoprothese, muskuloskelettale Mehrkörperdynamik, 610 Medical sciences, Medicine, roboter-gestützte Implantat-Testung
Abstract

Fragestellung: Eine häufige Komplikation in der Knieendoprothetik ist die postoperative Instabilität, die durch mehrere Einflussgrößen wie Implantatpositionierung und Weichteilinsuffizienz bedingt ist. Dadurch wird eine reproduzierbare Identifikation von Versagensmechanismen und [zum vollständigen Text gelangen Sie über die oben angegebene URL], Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2018)

Published
2018
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40. Investigation of the inverse piezoelectric effect of trabecular bone on a micrometer lengthscale using synchrotron radiation

Author

Wieland, D.C.F., Krywka, C., Mick, E., Willumeit-Roemer, R., Bader, R., and Kluess, D.

Subjects
ddc:539.1
Abstract

In the present paper we have investigated the impact of electro stimulation on microstructural parameters of the major constituents of bone, hydroxyapatite and collagen. Therapeutic approaches exhibit an improved healing rate under electric fields. However, the underlying mechanism is not fully understood so far. In this context one possible effect which could be responsible is the inverse piezo electric effect at bone structures. Therefore, we have carried out scanning X-ray microdiffraction experiments, i.e. we recorded X-ray diffraction data with micrometer resolution using synchrotron radiation from trabecular bone samples in order to investigate how the bone matrix reacts to an applied electric field. Different samples were investigated, where the orientation of the collagen matrix differed with respect to the applied electric field. Our experiments aimed to determine whether the inverse piezo electric effect could have a significant impact on the improved bone regeneration owing to electrostimulative therapy. Our data suggest that strain is in fact induced in bone by the collagen matrix via the inverse piezo electric effect which occurs in the presence of an adequately oriented electric field. The magnitude of the underlying strain is in a range where bone cells are able to detect it.

Published
2015
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41. Tierexperimentelle Untersuchung eines neuen Verfahrens für das in-vivo Monitoring der Osseointegration von Implantatbeschichtungen

Author

Ruther, C, Gabler, C, Haenle, M, Ellenrieder, M, Lindner, T, Mittelmeier, W, Bader, R, and Kluess, D

Subjects
ddc: 610, Osseointegration, Tierexperimentelle Studie, Resonanzfrequenz, 610 Medical sciences, Medicine, Vibration, Beschichtungen
Abstract

Fragestellung: Die tierexperimentelle Untersuchung der Osseointegration verschiedener Implantatbeschichtungen kann derzeit nur postmortem durch biomechanische Analysen und histomorphometrische Methoden realisiert werden. In der Dentalimplantologie werden Vibrationsverfahren eingesetzt um die Osseointegration[for full text, please go to the a.m. URL], Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2013)

Published
2013
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42. Dynamische Analyse von Hüftendoprothesen mittels Hardware-in-the-Loop Simulation

Author

Herrmann, S, Kaehler, M, Souffrant, R, Kluess, D, Woernle, C, and Bader, R

Subjects
Muskuloskelettales Modell, ddc: 610, Impingement, Hüftendoprothesen, Luxation, 610 Medical sciences, Medicine, Hardware-in-the-Loop Simulation
Abstract

Fragestellung: Impingement, Instabilität und Luxation sind trotz der Identifizierung zahlreicher Einflussfaktoren häufige Komplikationen in der Hüftendoprothetik. Jedoch ist der Einfluss umgebender Weichteilstrukturen bislang noch nicht vollständig geklärt. Eine grundlegende[for full text, please go to the a.m. URL], Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2012)

Published
2012
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44. Influence of stem design parameters on periprosthetic femoral fractures examined by subject specific finite element analyses.

Author

Hennicke, N.S., Kluess, D., and Sander, M.

Subjects
*FEMORAL fractures, *PERIPROSTHETIC fractures, *FINITE element method, *FEMUR, *DAMAGE models, *BONE fractures
Abstract

• The development of periprosthetic femoral fractures is influenced by hip stem design parameters. • Friction at the implant-bone interface increases the fracture load and even higher fracture loads are possible for surfaces that allow or induce osseointegration. • An undersized implant reduces fracture load considerably due to the smaller cross-sectional area of the implant and the consequently missing initial stability. • A longer stem length leads to an increase of fracture load but shows signs of causing stress shielding and implant loosening after implantation. • Subject specific finite element analyses offer the possibility to compare different implant designs and choose the most suitable implant geometry the individual patient. Due to the increasing number of periprosthetic femoral fractures (PFF), the optimisation of implant design gains importance. For the presented research a validated, subject specific finite element model of a human femur with an inlying total hip stem was used to compare the influence of different geometrical implant parameters on the development of PFF. The heterogeneous bone tissue was modelled on the basis of computed tomography scans. A ductile damage model with element deletion was applied to simulate bone fracture in a load case re-enacting a stumbling scenario. The results were compared in terms of fracture load, subsidence and fracture pattern to analyse the influence of friction at the implant-bone interface, implant size and stem length. The results showed that higher friction coefficients lead to an increase of fracture load. Also, the usage of an oversized implant has a negligible effect while an undersized implant reduces the fracture load by 48.9% for the investigated femur. Lastly, a higher fracture load was reached with an elongated stem, but the bending and change in fracture path indicate a more distal force transmission and subsequent stress shielding in the proximal femur. [ABSTRACT FROM AUTHOR]

Published
2023
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