Sorry.

But still, it reminds me a lot of the hostile reception I got in this subforum (and the apparent requirement that I prove my legitimacy, even though my first bike tour was in 1981).

As for the OP and bike advice, I suggest putting the highest priorities on fit and gearing. An ill-fitting bike could impede recovery, and suitably low gearing (which is the norm on touring bikes) will really help with recovering from joint injuries. Anything you can mount a rack or bags on can be a touring bike, but one specifically designed for this is likely to be the most comfortable, and allows for lower gearing, wide tires, typically good brakes (I am partial to hydraulic discs).