I've read about coral being used as temporary structure for bone replacment but eventually the patient's own bone takes over replacing it. You'd think a liver

I've read about coral being used as temporary structure for bone replacment but eventually the patient's own bone takes over replacing it. You'd think a liver would be the easiest organ to grow since in adults a liver can regrow from a healthy piece. That's why you sometimes read about people donating part of their liver. I think there will always be one big problem and that's the health of the patient. People who need a new organ are so sick they probably won't survive the operation to get a new organ. Anesthetic is like a controlled drug overdose but add age and poor health I can't imagine being an anesthesiologist that's one tough job!