Broke his arm FOREVER (Fallout 4)

In short, this is the case. Passed missions from Mister "behavior needs your help", and somehow got to the super mutants. They are strong GUYS, they broke my arm. Well, I healed, healed and went on. I played another 2-3 gem missions, and noticed that my hand was in a "broken" position. Sometimes she reaches across her body to the pistol (left arm is broken). Scored and went on. I didn't want to load the save game with a healthy HAND (since it's not a hunt to go through the mission again). What to do? Are there any surgeons?