Elbow broken - multiple pieces accident.

Hi, I met with an accident 2.5 years back. My elbow broke into many pieces and they joined it in multiple surgeries. But I could not fully straighten my hand nor bend it fully. There's a 30-degree deformity in straightening it. I underwent physio for one year but it did not help. This is affecting my dally activities as I'm having to bend my shoulder to compensate for my bent elbow. I see that the bones in my elbow have grown big. Some people suggest that I can undergo another surgery and cut the extra bone growth to fix it. But some others also say that there's a possibility of nerves getting cut if they do something like that. Do you think that a surgery will fix it? As its been 2years now, won't the muscles and other things have become tight that they will not allow the elbow to straighten fully even there's no bone hindrance?