Good luck to you . . . Other than the slide guitar suggestion above all I can add is I wish you well.

On a side note . . . About 5 years ago I cutoff the tip of my 4th finger left/chord hand. ER doc did a brilliant job sewing it back on, still holding in fact and can't even see a scar.

I played a gig 5 days later, needless to say I played a lot of bar chords that day. Also I explained to the first three rows of my audience that if any foreign object flew in their direction during the performance that they should just save it and give it back to me after the show.

Get well soon!