In reply to tehmarks:
I had an open fractured tib/fib when I was 18 ( a long time before I started climbing), had a very complicated recovery (the orthopeadic surgeon in Greece where clearly not of the same standard as the one you had in France!!). I had 4 operations, 3 different orthopedic surgeons, several different approaches at fixing it, 4 months non weight bearing, eventually came out of a cast 6 months after the injury, and then 4 months physio My UK orthopeadic surgeon used me as a case study in a orthopeadic conference in Switzerland.. "how to sort out other peoples mess" I think was the title!!
Trampolining 12 months after the injury, and was mountain biking again a little before that. In the years since the injury I have raced downhill mountain bikes, big wave windsurfed and obviously climbed.
The only advice I had from the orthopedic surgeon was no motorbikes, no horse riding and no skiing (advice I have heeded), as the risk of a fracture at the same level of the original injury (mid shaft) is too high and would most likely result in amputation.
I think the key things to think about are what activities have a high likelihood of causing the same injury, particularly whilst the plate is still in situ, as a re fracture involving the plate would be a nightmare.
So, the question is how many topropers/ seconds do you know who have fractured their tib/fib? Then just take it easy at whatever activity you choose to do, and don't use painkillers to mask any pain...listen to your body.
Good luck