Not personal-to-me, but I lived with a broken leg sufferer who found the forearm crutches liberating and watched another person with a broken leg find them transformative as well, and I have a good friend who uses them always; we've talked about the mechanics of it and the reluctance of the US medical industry to adopt them. There's an association with polio, I think, and some idea that they're for cases of paralysis, MS, chronic illness; but they're really better for everyone who needs crutches.