No.I think he got some kind of magical hand than sacrificed the magical bones in the hand to raise Sub Diego.


Next time Wankie shows up here we should ask him about the hand 'cause it seems he knows a thing or two about the hand http://members5.boardhost.com/Aquaman/msg/1157475998.html



Wiki had this to say
 Quote:
After the loss of his left hand, Aquaman initially replaced it with a
cybernetic harpoon that responded to his thoughts (shaping into a
metal hand) and could be fired while staying attached via a
retractable line. Later, the harpoon was replaced by a magical hand
made out of water given to him by the Lady of the Lake, which grants
Aquaman numerous abilities, including but not limited to: the ability
to dehydrate anyone he touches with it, killing them instantly; to
make the hand extremely dense, thus taking Aquaman to the ocean floor
quickly; the ability to shape the hand into a weapon;[19] the ability
to shoot jets of scalding water; healing abilities;[20] the ability to
create portals into mystical dimensions;[21] the ability to
communicate with the Lady of the Lake through the waterbearer
hand;[22] and the ability to nullify magic.