I saw a programme last week on a japanese Surgeon who has been working with stem cell technology for some time and he appears to be very successful using DNA from the patients spine to inject into the knee to repair cartilage.
In my opinion the Medical Profession do not communicate as well as say the aircraft industry ie mistakes, progress, and innovation.
Noel Fitzpatrick (supervet) said he wishes Surgeons would come and talk to him as he feels they could learn from the stuff he is doing and vice versa.
Historically pioneering medical practitioners has often been snubbed and held back by Dinasoars not wishing to move on.