how long till we can grow limbs artifically?

Question: how long till we can grow limbs artifically?
- Keywords:
  artifically,
  engineering,
  genetic,
  GM,
  grow,
  lab,
  limb
Asked by ryantm to Helen, Jenni, Mark, Martin, Stu on 24 Jun 2011.
- Helen O'Connor answered on 24 Jun 2011:
  
  Some amphibians can grow entire limbs, so within nature, this is possible. I am not a genetic scientist (someone in the gene zone might help) but I am sure that stem cell research will help us find new ways to regenerate some parts of the body from our own stem cells – whether this includes limbs, I’m not sure.
  
  If you want to know more you could check out The Centre of Regenerative Medicine at the University of Bath or The Tissue Engineering and Regenerative Medicine pages of Imperial College London

Question: how long till we can grow limbs artifically?