At 3 years, 15 of them had radiolucency between the cement-bone interface that was unchanged from the 2-month postoperative radiograph. No radiolucency was noted about the stem bone-cement interface or between the screw and the bone. Ten of the 27 knees followed longer than 4 years had ...
However, from our long term clinical experiences on the use of our sloppy hinge design since 1984 and the knowledge of literature review of the results of using other semi-constrained (sloppy) or unconstrained designs, it was observed that radiolucency or loosening at the bone-cement interface ...
radiolucency was observed at the cement-bone interface. This radiolucency normally signifies a layer of fibrous tissue beneath which is often a thin layer of dense bone. Loose prosthetic components together with cement usually may be lifted from the surface of fibrous tissue, indicating that there...
In: Older MWJ (ed) Im- plant bone interface. Springer, Berlin Heidelberg NewYorkMalcom AJ. Pathology of cemented low-friction arthroplasties ... AJ Malcolm - Springer London 被引量: 11发表: 1990年 Effect of Femoral Stem Centralizer Design on Cement Mantle Porosity: Biomechanical and histologic...
The microhardness of ProRoot MTA decreases in the presence of bone graft powder, while CEM cement is not significantly affected [59]. Additionally, the immediate placement of coronal restorations can influence the setting reaction of CEM cement. Proper moist curing and hydration before restoration pla...
Repairing perforation with calcium sulfate barrier and white, type ΙΙ or type ΙV Portland cement as an obturation material also resulted in high remineralization, and no difference was found between various materials in terms of newly formed bone [12, 13]. 4.1.1.2. Clinical Studies In a ...
Radiographs revealed all cement mantles as grade B, with slight radiolucency at the cement-bone interface. The cement mantles were sectioned at 7levels, and porosity was measured at each level. All specimens had similar porosities, with an overall mean percentage of porosity of 3.3% 卤 2.2% ...
A further follow-up study of the 57 patients with tibial defects filled with cement and screws during total knee arthroplasty, which was presented in The Journal of Arthroplasty in 1986, continues to show no signs of failure of the cement, radiolucency at the bone-cement interface, or ...