In reply to marcusinbristol:
I had a partial fracture in my middle finger in January, not a full break. I started climbing again after a couple of weeks. I taped the finger straight (not tight but using lots of tape so I couldn't bend it much at all) climbed on very easy endurance circuits (only jugs), trying not to engage the injured finger at all. This worked quite well and I had no negative repercussions that I am aware of.
After a couple of months I started doing light fingerboarding, taking weight off with a pulley system to the point where I could hang with no pain/irritation in the finger. I gradually worked back to bodyweight hangs over a few weeks and then adding weight eventually. I only climbed easy circuits indoors during this time and moderate sport/ trad outdoors (avoiding pockets and crimpy routes).
I only returned to bouldering when I could hang a significant amount of additional weight on the fingerboard. It didn't take long to get back to this after I was back at bodyweight hangs.
Some of this may have been overkill but I was able to climb throughout the rehab period and make some endurance gains at the expense of strength. So not all doom and gloom.
Obviously what worked for me may not work for others.
Good luck with the rehab.