orthopedic braces PAEK POLYMER

prosthetic joint orthopedic to replace a hip joint or knee, comprising: - a first component prosthetic support mounted on a first bone having a first bearing surface component made entirely of a poly ether ether ketone (PEEK) not reinforced with carbon fiber or a polymer of polyaryl ether ketone (PAEK) which is reinforced with carbon fiber, - a second component mounted prosthetic support for a second bone having a second bearing surface component made of ultrahigh molecular weight polyethylene (UHMWPE) crosslinked by irradiation, wherein the first and second bearing surfaces in sliding engagement component together, wherein the polymer PAEK a Shore D hardness greater than that of crosslinked UHMWPE by irradiation.