Due to a gnarly accident, my right arm was in a cast for six months. They had to change the cast several times due to shrinking soft tissue, and by the time th

Due to a gnarly accident, my right arm was in a cast for six months. They had to change the cast several times due to shrinking soft tissue, and by the time the cast came off, from wrist to elbow was all the same width. It was awful. But, like you said, it came back to the 80% level very quickly. At first I was genuinely worried that I'd never recover, but at three months I was already two-thirds of the way to normal, and was at 95% by a year.