...Huizhou Yang; Daniele Marras; Chadd W. Clary; Thomas Zumbrunn; Renate List; Stephen J. Ferguson; Paul J. Rullkoetter Micromotion exceeding 150 μ m at the implant–bone interface may prevent bone formation and limit fixation after cementless knee arthroplasty. Understanding the critical parameters...

...Hamidreza Alidousti; Mark Taylor; Neil W. Bressloff 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 gaps to be created during physiological loading. It has...

... liner interface. The purpose of the current study is to quantify, by a validated finite element model, the forces generated in a hip arthroplasty as a result of subluxation relocation and compare them to the forces generated during normal gait. The micromotion between the liner and acetabular shell...

... to micromotion is introduced. The test parameters measured with the fretting wear simulator were as predicted by design calculations, and were sufficient to measure differences in the height and weight of cortical bone pins rubbing against two porous ingrowth surfaces, plasma-sprayed titanium and titanium fiber...