The hip replacement can be covered under another policy like a home warranty. At the same time, without coverage, the prices have to come down. If they don't, all of those expensive doctors are bringing in near $0. Such an economic position is untenable.

The other two are probably going to be fixed through direct market forces. If the people of America can only pay $X, then the makers of the drugs can only charge $X + small premium to have a market. Since they would face a similar price pinch abroad, they'd have to adjust their prices.

We've seen the inverse of the price pinch with the epi-pen scandal. The makers knew the price could go up since insurance would absorb the cost.