I'm assuming you're referring to the average retirement age of surgeons; it's probably around 60-70 usually, but it can extend way beyond that.
The reason most retire around that age is not due to a loss of manual dexterity skills (true for some), but mainly due to such a vast accumulation of wealth that a surgeon, if he retires around 60-70, can live the good life from then on.
A surgeon However there are many different type of surgeons, e.g., neurosurgeon, plastic or reconstructive surgeon, cardiac surgeon, and many more from where that came from.
niether be a toe surgeon
Vascular surgeon
A Maxillofacial surgeon is a surgeon that has specialized in operating the face and jaws.
What is narrow surgeon
Plastic surgeon earns more than cardiac surgeon.
Basically a brain surgeon...
Surgeon is a noun.
Plastic surgeon
Medical Doctor (MD)
A robotic surgeon is a surgeon that preforms surgery with the assistance of a robot. The robot has a flexible wrist to get into tiny spaces and a cameras inside for the surgeon.
Retirement itself is not a prefix. The re- in retirement, however, is a prefix.