10 percent were helped

I see the headline that the U.S. media has now seized is that lobotomy "helped 10% of all patients". Of course I don't agree that even 10% were helped, but let's humor them for a moment. If that number is to be believed then conversely 90% of all of the lobotomies were a failure.

I wonder how many would have consented if they knew that lobotomy had an estimated 90% failure rate?