Does anyone know anything about necrosis of the wrist?
Necrosis of the wrist is not like other kinds of aggressive necrosis like the other answerers are suggesting. Actually the wrist has about 8 carpal bones. The most commonly fractured are the scaphoid bone and the lunate bone. They have very fragile little blood vessels which feed them. If you break either of those bones, the blood supply to that bone can be disrupted and a part of the bone can die. That is the necrosis, actually called avascular necrosis because the vascular supply is broken when the bone is broken. Because the tiny bones in your wrist interact so precisely it is important to rebuild the damaged bone so arthritis and pain don’t become a problem as your son gets older. I think your doctor is right to do the surgery but make sure he is experienced in this type of delicate surgery. I think things will work out well. There is no way your son will lose his arm or anything like that. At the worst he may have some mild loss of flexibility and some arthritis pain later in life
