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English to Polish translations [PRO] Medical - Medical: Instruments
English term or phrase:bearing plate
Jest to plytka polietylenowa w endoprotezie kolana, ktora pelni w zasadzie funkcje łąkotki stawu kolanowego. Zamocowywana jest na metalowej podstawce(?) (tibial tray), ktorą przytwierdza sie dalej do kosci piszczelowej. "Bearing plate" to to samo, co ten nieszczesny "tibial insert" (element endoprotezy kolana).
Tego typu plytki polietylenowe sa na zdjeciach tez tu:
"In the natural knee joint, the joint surfaces between tibia and femur are not conforming. Nature has placed a piece of triangular cartilage between these two joint surface, the meniscus, which takes up and distributes the stresses evenly between the tibial and femoral joint condyles.
The menisci in the natural knee move quite a lot, and the clever surgeons who discovered this fact put a moving piece of polyethylene to replicate the Nature's moving interface system in their total knee joint prostheses.
Such a total knee model is called mobile bearing total knee joint.
Mobile bearing total knee prosthesis
has a polyethylene bearing plate that is very conforming with the femoral condyles. This bearing plate is, however, not affixed to the tibia as in the conventional total knee joint. Instead, the bearing plate moves on the surface of a highly polished metallic tray which is affixed to the tibia."