Ask lots of questions. I accepted the answer, "cookie cutter procedure", 96% success, ect... My new socket shifted a little and it kinda felt like a trailer hitch with the wrong size ball. They had to wait 6-7 weeks to go back in and fix it, warning me healing would be a little slower. Never mind the PT gal put the tape to my legs and the new hip side was 5/8" shorter.
So, find out if they can read a tape measure, and what kind of hardware is to be used. Also, I don't know the proper names of the procedure but are they going in from the front or back side.
I am not trying to be negative or put clouds on what you need to have done,. I honestly hope you have a very successful operation and recovery..
Don.t look at the tools they have set up in the OR. It looks like a woodshop.