I did the same a few years back. I didn’t get back on the bike for 5/6 months, although I could have got on earlier. I think I was given the all clear after 3 months but was told to be really careful, so I started running instead.
Make sure you really work on elbow mobility as soon as you’re told you should. I can’t fully lock out my arm anymore, but can get it mostly straight. My elbow is also still very sensitive, 5 years on, and really throbs at the slightest knock. But other than that, I rarely think about it now.
I was advised to get the metalwork removed when I mentioned MTBing and snowboarding to the Consultant. This was done a year later but could have been done earlier – I postponed it to ride Kielder 100. That operation is much quicker to recover from.