Search Results - "Wimmer, Markus"

Cartilage on the test bench — What is the functional role of synovial fluid in reducing wear and fatigue? by Wimmer, Markus A., Schmid, Thomas M.

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Biotribometer for Assessment of Cell and Tissue Toxicity of Orthopedic Metal Implant Debris by Radice, Simona, Wimmer, Markus A

“…A novel approach to address the clinical issue of cell response to wear and corrosion debris from metal orthopedic implants consists of combining cell…”
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New Insights into Wear and Biological Effects of Metal-on-Metal Bearings by Catelas, Isabelle, Wimmer, Markus A.

“…Despite the renewed interest in metal-on-metal implants in the past two decades, the underlying wear mechanisms and biological effects are still not fully…”
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Protein-metal interactions due to fretting corrosion at the taper junction of hip implants: An in vitro investigation using Raman spectroscopy by Wittrock, Adrian, Heermant, Saskia, Beckmann, Christian, Wimmer, Markus A., Fischer, Alfons, Aßmann, Marc, Debus, Jörg

“…[Display omitted] Modular hip implants are a clinically successful and widely used treatment for patients with arthritis. Despite ongoing retrieval studies the…”
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Hip joint contact forces are lower in people with femoroacetabular impingement syndrome during squat tasks by Perrone, Mattia, Guidetti, Martina, Galli, Manuela, Nho, Shane J., Wimmer, Markus A., Malloy, Philip

“…It remains unknown if hip joint forces during squat tasks are altered in people with femoroacetabular impingement syndrome (FAIS). The aim of this study is to…”
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Nickel‐free high‐nitrogen austenitic steel outperforms CoCrMo alloy regarding tribocorrosion in simulated inflammatory synovial fluids by Radice, Simona, Neto, Mozart Q., Fischer, Alfons, Wimmer, Markus A.

“…CoCrMo alloys are well‐established biomaterials used for orthopedic joint replacement implants. However, such alloys have been associated with clinical…”
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Unsupervised gait retraining using a wireless pressure-detecting shoe insole by He, Jade, Lippmann, Kevin, Shakoor, Najia, Ferrigno, Christopher, Wimmer, Markus A.

“…•Subjects reduced knee adduction moment after gait retraining following feedback.•Gait modification cued by pressure-based auditory feedback reduced both KAM…”
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Corrosion resistance of the nickel‐free high‐nitrogen steel FeCrMnMoN0.9 under simulated inflammatory conditions by Radice, Simona, Impergre, Amandine, Fischer, Alfons, Wimmer, Markus A.

“…Nickel‐free, high‐nitrogen austenitic steels (AHNS) have been introduced for biomedical applications, with encouraging results in terms of mechanical and…”
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Towards the understanding of lubrication mechanisms in total knee replacements – Part II: Numerical modeling by Marian, Max, Orgeldinger, Christian, Rothammer, Benedict, Nečas, David, Vrbka, Martin, Křupka, Ivan, Hartl, Martin, Wimmer, Markus A., Tremmel, Stephan, Wartzack, Sandro

“…Total knee replacements are an effective surgical treatment to restore the function of the knee. For an adequate design, knowledge about stresses and…”
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The tribological difference between biomedical steels and CoCrMo-alloys by Fischer, Alfons, Weiß, Sabine, Wimmer, Markus A.

“…In orthopedic surgery, different self-mating metal couples are used for sliding wear applications. Despite the fact that in mechanical engineering, self-mating…”
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From normal to fast walking: Impact of cadence and stride length on lower extremity joint moments by Ardestani, Marzieh M, Ferrigno, Christopher, Moazen, Mehran, Wimmer, Markus A

“…Highlights • Various adjustments of cadence and stride length were studied. • Increasing cadence to walk faster did not increase joint moments. • Increasing…”
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Wear-Corrosion Synergism in a CoCrMo Hip Bearing Alloy Is Influenced by Proteins by Mathew, Mathew T., Jacobs, Joshua J., Wimmer, Markus A.

“…Background Although numerous in vitro studies report on the tribological performance of and, separately, on the corrosion properties of cobalt-based alloys in…”
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Validity and Reliability of the Insole3 Instrumented Shoe Insole for Ground Reaction Force Measurement during Walking and Running by Cramer, Leora A, Wimmer, Markus A, Malloy, Philip, O'Keefe, Joan A, Knowlton, Christopher B, Ferrigno, Christopher

“…Pressure-detecting insoles such as the Insole3 have potential as a portable alternative for assessing vertical ground reaction force (vGRF) outside of…”
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The choice of the femoral center of rotation affects material loss in total knee replacement wear testing – A parametric finite element study of ISO 14243-3 by Mell, Steven P., Wimmer, Markus A., Lundberg, Hannah J.

“…A leading cause of long-term failure of total knee replacements (TKRs) is osteolysis caused by polyethylene wear particles. The current gold standard for…”
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Towards the understanding of lubrication mechanisms in total knee replacements – Part I: Experimental investigations by Nečas, David, Vrbka, Martin, Marian, Max, Rothammer, Benedict, Tremmel, Stephan, Wartzack, Sandro, Galandáková, Adéla, Gallo, Jiří, Wimmer, Markus A., Křupka, Ivan, Hartl, Martin

“…This contribution is aimed at the detailed understanding of lubrication mechanisms within total knee replacement. While Part I is focused on the experimental…”
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Can a Linear Combination of Gait Principal Component Vectors Identify Hip OA Stages? by Ardestani, Marzieh M, Wimmer, Markus A

“…Abstract Hip osteoarthritis (OA) has been shown to affect gait patterns of lower extremities. However, until now, no specific identifying gait characteristics…”
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Expanding instrumented gait testing in the community setting: A portable, depth-sensing camera captures joint motion in older adults by Dawe, Robert J, Yu, Lei, Leurgans, Sue E, Truty, Timothy, Curran, Thomas, Hausdorff, Jeffrey M, Wimmer, Markus A, Block, Joel A, Bennett, David A, Buchman, Aron S

“…Currently, it is not feasible to obtain laboratory-based measures of joint motion in large numbers of older adults. We assessed the utility of a portable…”
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Sensitivity of total knee replacement wear to variability in motion and load input: A parametric finite element analysis study by Mell, Steven P., Wimmer, Markus A., Lundberg, Hannah J.

“…Polyethylene wear remains a contributor to long term failure in total knee replacements (TKRs). Advances in materials have improved polyethylene wear rates,…”
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Predictors of throwing velocity in youth and adolescent pitchers by Sgroi, Terrance, DPT, MTC, Chalmers, Peter N., MD, Riff, Andrew J., MD, Lesniak, Matthew, DPT, Sayegh, Eli T., BS, Wimmer, Markus A., PhD, Verma, Nikhil N., MD, Cole, Brian J., MD, MBA, Romeo, Anthony A., MD

“…Background Shoulder and elbow injuries are a common cause of pain, dysfunction, and inability to play in overhead throwers. Pitch velocity plays an integral…”
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The Relationship Between Pitching Mechanics and Injury: A Review of Current Concepts by Chalmers, Peter N., Wimmer, Markus A., Verma, Nikhil N., Cole, Brian J., Romeo, Anthony A., Cvetanovich, Gregory L., Pearl, Michael L.

“…Context: The overhand pitch is one of the fastest known human motions and places enormous forces and torques on the upper extremity. Shoulder and elbow pain…”
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