Surgical bots programmed by the Davos cadre. And you MUST get your surgery, just as you MUST have your monthly Jab. Even if the Jabs are just saline, now that so many have been killed off by the lethal stuff.
Point is to create a world of unconditional obedience, abolition of choice, free-will or resistance...and surgical procedures unimpeded by conscience or ethics. So you go in for a replacement knee, and instead you get a lobotomy, and your memory uploaded to the Utah data-centre and AI Control Central.