Of all the mentally and physically debilitating things that can happen to a person, how many are treatable? I would guess its over 95% at this point, but I do not know for sure.
True, you can’t fix stage 4 cancer, or a 200 foot fall but most diseases.
As far as the definition of treatment, I guess there are levels of treating people. One level is 100% treatment with a total fixing and remission, one is just some treatment and preventitive measures (like how good diet & exercise cut cancer rates by 30% but not by 100%) that cut the risk and damage, but are not 100% effective. Is it safe to say that 99.9% of medical problems are partially treatable (even something like using good hygiene and isolation to avoid the black plague in europe 700 years ago was a form of partial control) and that about 90% are totally treatable given enough money and time?