Hi dear.elbow get stiff after such kind of injuries routinely.some patients get very much relief after elbow release.we hv to assess whether you are a candidate of the same or not.regards dr pankaj agrawal .shoulder knee and joints reconstruction surgeon ahmedabad

I can make an offer exercise program for you that you can do yourself at home

Recovery mainly depends upon how communited was the original fracture and how much is the range of movements of your elbow now. Recent xray would also help in localising the cause - whether it's a bony cause or stiffness post injury... I would advise you to follow up with your Orthopaedician and physiotherapist. The above parameters should give you the answer.