I watched it in full before I had my BTKR last year. I am into all the science and parts of the body and wanted to know exactly what was going to happen to me. I understood TKR is basically carpentry work done on your body! Most of the tools are similar and sanitized. When you realize you are getting 5 bone cuts on the end of your femur, and the top of the tibia is cut off to hammer in the post of the platform the spacer rests on, you realize why you are hurting! Not only is it the incision in the skin & muscle, but also the bones! Plus the knee cap is shaved to adhere the plate to hold the button that rolls it up and down on the metal replacement parts. Frankly, I loved knowing what was going to happen to me. Then I knew what to expect and could advocate for myself.
We all are different in how much we want to know and see.