Demonstration of a new technique using radioisotope tracers to measure the backside wear rate on tibial inserts
Warner, Jacob A; Gladkis, Laura; Smith, Paul; Scarvell, Jennie; Timmers, Heiko
Local backside wear measurements on ultrahigh molecular weight polyethylene (UHMWPE) tibial inserts in LCS mobile bearing knee prostheses have been performed using a new radioisotope tracing technique. The radioisotope tracers97Ru and101mRh were synthesized via a fusion evaporation reaction and recoilimplanted into cylindrical plugs of UHMWPE. The labelled plugs were carefully fitted into tibial inserts at two relevant locations. With bovine serum acting as a lubricant, the tibial inserts were...[Show more]
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