Is that your leg? Wow, you must have had a pretty bad accident. I am glad you recovered and had a good surgeon. Yes, surgery can be quite effective and giving back some of the quality of the life before the illness.
My relative has had several bypasses and reports how much better he is since then. But of course there are such and such stories in this field too. An elderly client whom I counseled for many years suffered from unspeakable pain after a back operation and a doctor had signalled to him that the operation had been performed incorrectly.
Thank you for mentioning your other illness, plus something that probably scares most people a lot. It is important to learn that apart from modern medicine, those who reject it do not die but find ways to overcome what is now commonly accepted as a death sentence.
I am glad having found this little group, I know not much people in real life who share my notions in this regard.