Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Mobile-bearing"”.
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Tibiales Malalignment bei Mobile-Bearing-Prothesen
… vitro, a simulator investigation was performed. Mobile-bearing- prostheses were implanted in a simulator with 1°-30 valgus- and varus malalignment as well as in neutral position. More extreme malalignment caused unexceptional forces in the simulator. After each 500,000 cycles (ca. 0,5 years of …
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Clinical investigation of the functional outcome of fixed bearing versus mobile bearing knees
… ultra-congruent fixed (UC), and ultra-congruent mobile (UCR) bearing Columbus Total Knee Systems were assessed. The pre- and postoperative function of twenty-four osteoarthritic patients was evaluated against nine control participants whilst carrying out activities of daily living. …
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Multi-objective design optimization of a mobile-bearing total disc arthroplasty considering spinal kinematics, facet joint loads, and metal-on-polyethylene contact mechanics
… simultaneously.</p> <p>Furthermore, a new mobile-bearing TDA design concept featuring a biconcave polyethylene (PE) core was proposed, to strengthen the PE rim, where a high risk of fracture exists. It was hypothesized that there is a trade-off relationship among postoperative performance …
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Finite element analysis of total knee replacement considering gait cycle load and malalignment
… Dynamic and finite element models of fixed- and mobile-bearing implants have been created and solved; the fixed- and mobile-bearing implants demonstrated different performance on movement and contact pressure distribution in the tibio-femoral contact surfaces. More contact areas were found in the …
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4D CT based analysis of knee kinematics
… the restoration of the knee's original function. Bearing in mind that stability, range of motion and alignment are all directly correlated with the kinematics of the knee, then focus should be given to understanding the underlying knee mechanics to be able to restore the native kinematics. …
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Prediction of knee loading in native knee and total knee arthroplasty : a forward dynamics computational study
… virtually replacing the native knee with fixed-bearing and mobile-bearing total knee arthroplasty designs performing gait and step-up tasks. This approach minimized the biomechanical impact of variations in sex, geometry, implant size, design and positioning, ligament location and tension, and …
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Failure of Primary Total Knee Arthroplasty: Establishing a Baseline for Retrieval Analysis Using Well-Functioning Necropsy Specimens
… post, when applicable, and of damage to the bearing surface of the femoral components. Joint laxity was measured using a custom knee testing platform that had been previously studied and utilized in published journal articles and theses. Inflammatory cytokine profiles in the synovial fluid …