In September, 1988 I fractured the head of the radius in two places, the physician said it looked like splintered wood but he set it and put a cast on it and did not have to do any surgery.
Cast came off three or four weeks later and I started physical therapy. I got about 80% usage very quickly and had to work fairly hard and consistently go to therapy in order to get the range of movement up to close to normal.
Now I almost straighten the arm, but not 100%. I am 59 and it is not going to get any better.
Screwed up my golf swing for a while but I adapted and managed to get my scores back below 110 within a month or two the following spring.