I know of several people who lived alone and had knee surgury. They went to a rehab facility aka a nursing home for around six weeks
I think. Their insurance paid for the rehab.
The husband had hip surgury in his late 60's and was sent home after a brief stay in the hospital.
Physical therapists and aides came to the house. Medicare/insurance paid for both.
I had knee surgury in my late 50's and was sent home that day. Later I went for rehab exercises three times a week.
I had to pay a $30 copay for each visit.
As you can see treatment varies. I chose early surgury. My thoughts were youre going to have to do something eventually.
You can postpone it with shots etc. But in the meantime, youre going to be in pain. So why not just get it over with and be pain free.
Also the older you are the harder it will be to recuperate.