I broke my wrist on an 11-day hike this past summer (Tour du Mont Blanc). The awesome doctor I dealt with in Switzerland was like "you can finish your hike, just don't fall on your wrist again or it will be really bad" (or something along those lines). It healed so fast I can't even believe it. I was still using poles for the hike, too. The combination of sustained high-output (12hrs+ hiking per day with major elevation deltas) and some usage of the wrist surely bolstered bloodflow and oxygen throughput, etc. .. eating well surely helped too. Was a really cool experience. My climbing friends back home were surprised how quickly I was back on the wall after such a short period of healing up! At this moment I literally don't remember which wrist I broke... lol