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Do Capsular Pressure and Implant Motion Interact to Cause High Pressure in the Periprosthetic Bone in Total Hip Replacement?
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: When there is a debonding at the bone-implant interface, the difference in stiffness between the implant and the bone can result in micromotion, allowing existing gaps to open further or new ...
On the Importance of Considering Porosity When Simulating the Fatigue of Bone Cement
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Fatigue cracking in the cement mantle of total hip replacement has been identified as a possible cause of implant loosening. Retrieval studies and in vitro tests have found porosity in the ...
Damage Rate is a Predictor of Fatigue Life and Creep Strain Rate in Tensile Fatigue of Human Cortical Bone Samples
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We present results on the growth of damage in 29 fatigue tests of human femoral cortical bone from four individuals, aged 53–79. In these tests we examine the interdependency of stress, cycles ...
Accounting for Inclusions and Voids Allows the Prediction of Tensile Fatigue Life of Bone Cement
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Previous attempts by researchers to predict the fatigue behavior of bone cement have been capable of predicting the location of final failure in complex geometries but incapable of predicting ...
User Interfaces for Complex Engineering Software: Application of Virtual Reality
Publisher: American Society of Civil Engineers
Abstract: IT systems for engineers are becoming more numerous and complex and will further proliferate in the future. It is infeasible to expect users to be trained to work with a plethora of systems, especially as many of them will ...
Verification of Predicted Knee Replacement Kinematics During Simulated Gait in the Kansas Knee Simulator
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Evaluating total knee replacement kinematics and contact pressure distributions is an important element of preclinical assessment of implant designs. Although physical testing is essential in the ...
Wear in the Prosthetic Shoulder: Association With Design Parameters
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Total replacement of the glenohumeral joint provides an effective means for treating a variety of pathologies of the shoulder. However, several studies indicate that the procedure has not yet ...
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