In the British navy in the eighteenth century, ships' surgeons were given the epithet "sawbones" because the common treatment for injuries to limbs was amputation. The amputation procedure involved cutting through soft tissue, sawing through the bone, then cauterising the stump with tar.
An orthopedic surgeon works on the skeletal system, or better known as bones.
A group of veterinary surgeons is called a College of veterinary surgeons. If you have many groups of veterinary surgeons, they are Colleges.
Originally, orthopedic surgeons treated skeletal deformities in children, using braces to straighten the child's bones.
Orthopedic surgeons
gastroenterologists
They can be called an OR nurse or circulator.
scalpel
the ships carrying emigrants were called "coffin" ships
They also treat strains and sprains, broken bones, and dislocations.
Because before there were surgeons the job had been done by barbers, who were not medically trained.
Coffin ships were called coffin ships because lots of people died on them
Spondylolisthesis surgery fixes the bones that compose the vertebral column so the bones are back in place. One can get such surgeries done at highly specialized surgeons.