I took DS to the docs on friday as he has been complaining of pain in his left knee (his worse affected leg) He has been waking at night screaming in pain and crying. On friday he fell down and couldn't get up because of the pain. The doctors said it might be arthiris and has given him Calpofen to ease the pain, but its if not any better in 3 weeks I have to take him back and he will arrange a x-ray.
Now is this common in children with CP? and could the way he walks have caused this?