Segmental induction heating of hip stem, proximally. a) A thermal image from a thermal camera showing selective heating. The vertical lines have 1 cm spacing. b) A graph showing thermal dose in CEM43 at several distances from the heating centre (HC). The dashed line represents 16 CEM43, the threshold for necrosis of bone. c) A graph showing the temperature at several distances from the HC during the segmental induction heating and thereafter. Dashed lines indicate distal direction.