Patent ID: 8273130

Claim:
A prosthesis for replacing a bone junction, said prosthesis comprising a condyle ( 10 ) and a socket ( 12 ) of complementary spatial shape and a collar ( 14 ), said condyle ( 10 ), socket ( 12 ) and collar ( 14 ) each comprising a permanent magnet layer ( 18 ) and a shielding layer ( 20 ), the condyle ( 10 ) and the socket ( 12 ) as well as the condyle ( 10 ) and the collar ( 14 ) being separated by a gap ( 24 ), said permanent magnet layers ( 18 ) of condyle ( 10 ), socket ( 12 ) and collar ( 14 ) having like polarity, the flux density of said permanent magnet layers ( 18 ) of condyle ( 10 ) and socket ( 12 ) being at least 0.4 Tesla, and the permanent magnet layer ( 18 ) of collar ( 14 ) having at most the flux density of the permanent magnet layers ( 18 ) of condyle ( 10 ) and socket ( 12 ).