Ex vivo stability loss of irradiated and melted ultra-high molecular weight polyethylene.

BACKGROUND Radiation crosslinking reduces wear of ultra-high molecular weight polyethylene (UHMWPE), and subsequent annealing or melting increases oxidative stability. Little is known about the oxidative stability of polyethylene total joint components after in vivo service and subsequent shelf storage in air. METHODS We analyzed thirty-four surgically… CONTINUE READING