Improved Resistance to Neck-Liner Impingement in Second-Generation Highly Crosslinked Polyethylene-The Role of Vitamin E and Crosslinks

These results suggest that vitamin E-blending into UHMWPE has compensated the negative effect of toughness decrease induced by radiation crosslinking. We concluded that the coexistence of vitamin E and crosslinks can restrain impingement damage more effectively than either of them.