she can bend up to 120 degree but the problem with straightening the leg(extension) she lost 45 degree .
will this make a difference .
worst case scenario if we had do do surgeory, does surgery fixing the issue?
See it may resolve after sometime or maybe not.
There are no experts/doctors on this forum, but suggestions that you would get from here might help you.
What did her current doctor say, can you please tell?
I would advise you to consult this case with some other doctors too( who are the experts ).
If you wouldn’t mind could you tell which country are you from, someone on this forum might be able to suggest some good docs.