What should i expect for a fractured elbow cast being removed after three weeks?

Elbow fracture: You will likely be very stiff after cast is removed. Elbow range-of-motion exercises with a trained physical therapist is probably appropriate. Make sure you are compliant with your treating doctor's recommendations as he/she will customize your treatment based on the fracture pattern and healing.

Dr Ali agreed

Stiffness Soreness: Expect stiffness after you come out of the cast. Your elbow will also be sore, it usually takes about six weeks for a fracture to heal. In the elbow we usually remove the cast earlier because you can lose a lot of elbow motion if it's in a cast too long.