It seems you have developed heterotropic ossification in your hip joint. This results in stiffness of the hip joint and significantly restricts activities. Yes, it can be removed provided there is no evidence of activity in the ossification, this can be assessed by looking at serial X-rays. If two consecutive X-ray do not show evidence of increase in density or size of ossification, then it is likely to be a mature ossification. At this stage it can be removed, however, there is always a risk of recurrence of the problem. You are also right on radiation as a possibility. However, this is reserved for some of the bad cases and not often resorted to. More commonly, a drug called Indomethacin can be given after surgery. This also reduces the incidence of ossification. However, this does not remove it completely. At your age, if you are handicapped enough even for your activities of daily living it is worth considering repeat surgery and Indomethacin. It cannot be normal after surgery, but you should be able to regain movements sufficient enough for activities of daily living. I would recommend that you consult your orthopaedic surgeon and re-consider the whole decision after clinical assessment.