Here's the thing though, doctors have a long storied background of not knowing what the hell they're doing. History is filled with stories of hilarious medical ineptitude, and in all likeliness, today's medical practices will be similarly snorted at 100 years down the road.
Empty definition, containing nothing; having none of the usual or appropriate contents: an empty bottle. See more.
The definition of hollow is having a space inside or being shaped like a bowl. An example of hollow is a chocolate Easter bunny with nothing inside of it. An example of hollow are cheeks which are deeply sunken. Hollow means an empty space.