trepan

they used a trepan to remove a piece of bone.

the surgeon decided to trepan the skull for further examination.

trepanation is an ancient practice still used in some medical cases.

he learned how to trepan safely during his medical training.

after the accident, they had to trepan to relieve pressure on the brain.

using a trepan requires precision and skill.

she read about the history of trepanation in ancient cultures.

the trepan was a crucial tool in early neurosurgery.

doctors must be trained to perform a trepan correctly.

trepan techniques have evolved over the years.